Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 644951:
Find all numbers for which the rational expression is not defined:
2x - 7 / x2 + 5x - 24

Click here to see answer by stanbon(75887)

Question 645105: how do you solve (8x/2x-y)-(4y/2x-y)
Click here to see answer by stanbon(75887)

Question 645111: I'm not sure if this is quadratic or not, but how do you find y=x�-4?
Click here to see answer by stanbon(75887)

Question 645001: How do you solve 200x=40
Click here to see answer by kekegeter (97)

Question 645410: You're getting paid, right? :I
Click here to see answer by 10301650(32)

Question 645410: You're getting paid, right? :I
Click here to see answer by Alan3354(69443)

Question 645451: sketch the graphs of hte line and the parabola on a single set of axes. find the coordinates of any points of interstctions by solving algebraically.
2x+y=10, y=9-x^2
Click here to see answer by Alan3354(69443)

Question 645507: what's the solution to 8y^3-64=0?
Click here to see answer by MathLover1(20849)

Question 645506: what's the solution to 8y^3-65=0?
Click here to see answer by MathLover1(20849)

Question 645592: I'm working on quadratic equations with one variable using the quadratic formula. The step I am stuck on involves square roots. The step is as follows: y = -4 plus or minus the square root of -24 over (divided by) 4. I know that the answer (the software I use allows me to see the solution)is y = -4 plus or minus 2 square root of 6 i over 4. What I don't get is where the 2 in front of the square root symbol comes from. I have encountered a few of these problems and cannot work the solution out on my own.
Click here to see answer by ewatrrr(24785)

Question 645947: How long would it take a ball dropped from the top of a 81 foot building to hit the ground?

I have no idea how to solve this.
Click here to see answer by josmiceli(19441)

Question 646498: Hello professor. I'm having a real difficult time with this problem. My worksheet just says solve. I'm assuming its an equatic eq or completing the square. This is the problem.
3/3x-1/x+1=1
and my choices are, A.0 B. -1+the squareroot of 5 over 2 C. -3+sq root of 5 over 2 or D. 1+sq of 5 over 2.
And my worksheet says solve the equation. So I think it's a quadratic eq but I dont know what to do since there's fractions. Thank you for your help!
Click here to see answer by stanbon(75887)

Question 646624: For a typical basketball shot, the balls height (in feet) will be a function of time in flight (in seconds), models by any equations such as h= -16^2 + 40t .
What is the maximum height of the ball?
When will the shot reach the height of the basket (10 feet)?
When will the ball hit the floor, if it is missed the basket entirely?
Click here to see answer by lwsshak3(11628)

Question 646729: Professor I'm sorry to keep bothering you but I'm really desperate with this problem. I have no idea how to solve it at all. My worksheet says solve the equation and I think it's quadratic. Please help me with this.
(3/3x)-(1/x+1)= 1
And here are my choices (A)0 (B)-1+the square root of 5 over 2 (C)-3+ the square root of 5 over 2 or (D) 1+ square root of 5 ovr 2
I tried finding the common denominator, as a result I got 0 but I'm not sure if that's correct. Thank you so much for your time. I highly appreciate this.
Click here to see answer by ewatrrr(24785)

Question 646728: Professor I'm sorry to keep bothering you but I'm really desperate with this problem. I have no idea how to solve it at all. My worksheet says solve the equation and I think it's quadratic. Please help me with this.
(3/3x)-(1/x+1)= 1
And here are my choices (A)0 (B)-1+the square root of 5 over 2 (C)-3+ the square root of 5 over 2 or (D) 1+ square root of 5 ovr 2
I tried finding the common denominator, as a result I got 0 but I'm not sure if that's correct. Thank you so much for your time. I highly appreciate this.
Click here to see answer by ewatrrr(24785)

Question 646727: Professor I'm sorry to keep bothering you but I'm really desperate with this problem. I have no idea how to solve it at all. My worksheet says solve the equation and I think it's quadratic. Please help me with this.
(3/3x)-(1/x+1)= 1
And here are my choices (A)0 (B)-1+the square root of 5 over 2 (C)-3+ the square root of 5 over 2 or (D) 1+ square root of 5 ovr 2
I tried finding the common denominator, as a result I got 0 but I'm not sure if that's correct. Thank you so much for your time. I highly appreciate this.
Click here to see answer by ankor@dixie-net.com(22740)

Question 647006: HI math tutors. I am extremely confused with this if you guys could help me i would appreciate. thanks
how would i be able to solve and to graph this equation y=1/(x^2-2)(x^3-3)? and find the slope
Click here to see answer by Alan3354(69443)

Question 647241: explain how to calculate 5a4=80
Click here to see answer by colliefan(242)

Question 647203: solve the equation using the quadratic formula.
(9x-1)(2x+1)=2x
What is the solution set?
Click here to see answer by colliefan(242)

Question 647366: x2+9x+18
Click here to see answer by jim_thompson5910(35256)

Question 647413: Construct the quadrilateral MIST where MI=3.5cm, IS=6.5cm, angle M=75�,angle I=105�, and angle S=120�
Click here to see answer by Edwin McCravy(20054)

Question 647408: Construct the quadrilateral MIST where MI=3.5cm, IS=6.5cm, angleM=75degree, angleI=105degree, and angleS=120degree
Click here to see answer by MathLover1(20849)

Question 647781: Solve for w
3w^2+18w=0
how many solutions?
Click here to see answer by Aaniya(63)

Question 647919: my college grad parents have failed me on this:
(x-1)2 - (x+1)2=4
solve for x
Click here to see answer by Algebraic(50)

Question 647919: my college grad parents have failed me on this:
(x-1)2 - (x+1)2=4
solve for x
Click here to see answer by MathTherapy(10549)

Question 647938: 1/3x - 4=2x -1/7x
Click here to see answer by Algebraic(50)

Question 647943: 2x+3y=7
x-3y=8
Click here to see answer by rfer(16322)

Question 648061: find the answer to make x the subject in a(x+1)=b(x+2)
Click here to see answer by nerdybill(7384)

Question 648113: A farmer has 40 metres of fencing with which he intends to make a rectangular enclosure for a few sheep and their lambs. The farmer calculates that he requires 96m�of grass in the sheep pen. By forming a quadratic equation find the dimensions of the pen
Click here to see answer by stanbon(75887)

Question 648127: how do I Complete the square for
m^2-4m-12=0
Click here to see answer by Algebraic(50)

Question 648127: how do I Complete the square for
m^2-4m-12=0
Click here to see answer by MathTherapy(10549)

Question 648286: 5c^2-11c-12=0
Click here to see answer by jim_thompson5910(35256)

Question 648295: What is the vertex of the parabola
f(x)=14x-x^2
I don't know how to insert the small 2 over the x.
Click here to see answer by ewatrrr(24785)

Question 648400: (x-2)^(2/3)+(x-2)^(1/3)-12=0
the fractions are exponents
Click here to see answer by lynnlo(4176)

Question 648400: (x-2)^(2/3)+(x-2)^(1/3)-12=0
the fractions are exponents
Click here to see answer by Alan3354(69443)

Question 648381: Dfbvf
Click here to see answer by Alan3354(69443)

Question 648510: hi i'm in college and i'm so confuse in algebra class.
*Solve the quadratic equation by factoring and applying the zero product principle
1)x2 − x − 6 = 0
2)(x − 8)2 − 9 = 0
can u please help me? explain to me how to solve the problems?
Click here to see answer by Algebraic(50)

Question 648590: (3 � 3)(5 � 3)(6 + 2) = x2. What�s the value of x?
Click here to see answer by swincher4391(1107)

Question 649275: where do i even start when it comes to this problem?
7(x+9)^2-48(x+9)=7
I know it has to deal with GCF, which is (x+9) but that's about it. PLEASE HELP!
Click here to see answer by Alan3354(69443)

Question 649368: 2x^2+14x+4=0 I cant seem to find the answer

Click here to see answer by jim_thompson5910(35256)

Question 649588: Find the zeroes of the quadratic equation in realation to the imaginary number "i"
x^2-x+8=0
Click here to see answer by solver91311(24713)

Question 649611: 1)3x^2-19x+6
2) 2x^2+11x-4
3)5x^2-13x-6
Need help factoring, not solving.
Click here to see answer by ewatrrr(24785)

Question 649634: Need help factoring this, not solving.
2a^2-11a+7
Click here to see answer by solver91311(24713)

Question 649634: Need help factoring this, not solving.
2a^2-11a+7
Click here to see answer by swincher4391(1107)

Question 649691: x^3 + 6x^2 + 13x = 0
Find the solution of the equation
Click here to see answer by swincher4391(1107)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240