Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 380718: use rational exponenents to simplify.
^3 square root sign x ^12
Click here to see answer by user_dude2008(1862)

Question 380717: Find all numbers for which the rational expression is undefined.
N^3-5n/n^2-9
Click here to see answer by user_dude2008(1862)

Question 380684: Divide and simplify.
d^2/d^14
Click here to see answer by user_dude2008(1862)

Question 380671: Factor completely.
4s^2 + 9 -12s
Click here to see answer by user_dude2008(1862)

Question 380672: Factor the trinomial.
a^3-2a^2-35a
Click here to see answer by user_dude2008(1862)

Question 380721: Find the greatest common factor for the group of terms.
-30a^4, 5a^5
Click here to see answer by user_dude2008(1862)

Question 380673: Factor completely.
12a^2+36ad+27d^2
Click here to see answer by user_dude2008(1862)

Question 380768: Winter wheat. While finding the amount of seed needed
to plant his three square wheat fields, Hank observed that
the side of one field was 1 kilometer longer than the side
of the smallest field and that the side of the largest field
was 3 kilometers longer than the side of the smallest field.
If the total area of the three fields is 38 square kilometers,
then what is the area of each field?
Click here to see answer by stanbon(75887)

Question 380863: Use the discriminant to determine how many roots the graph of the following equation will have.
x^2-8x+16
Click here to see answer by stanbon(75887)

Question 380819: Solve
(x-6)^2=x
Click here to see answer by robertb(5830)

Question 381030: solve this equation by using the quadratic formula 6x^2=-12x-4

Click here to see answer by stanbon(75887)

Question 381034: Use the discriminant to determine the number and type of solutions of the equations.Your anwser should be one real root, two real roots or two complex roots. Circle the discriminant value.
x^2+8x-6=0
4x^2-4x+1=0
Solve
x^4-9x^2-112=0
x^2/3-7x^1/3+10=0
Click here to see answer by stanbon(75887)

Question 381064: For what values of k does the equation 3x^2-2x+k=0 have imaginary roots?
1. k is less than 1/3
2.k is greater than 1/3
3. k is less than 0
4. k is greater than 0
Click here to see answer by ptaylor(2198)

Question 381215: 3x^2+5x-2
Click here to see answer by jim_thompson5910(35256)

Question 381217: what are the factors of q3-q2+2q-2

Click here to see answer by jim_thompson5910(35256)

Question 381218: what are the factors of t4-81
Click here to see answer by robertb(5830)

Question 381287: 2x^2-3x=-5
Use quadratic formula to solve equation
Click here to see answer by mananth(16946)

Question 381285: Solve: 8(3x+5)^2 +2(3x+5)-1=0
Click here to see answer by Fombitz(32388)

Question 381307: how do i solve z^2+2z-15=0?
Click here to see answer by edjones(8007)

Question 381299: A 60 foot by 80 foot rectangular walk in a park surrounds a flower bed. If the walk is of uniform width and its area is equal to the area of the flower bed, how wide is the walk? Set up a quadratic equation, factor, and solve.
Click here to see answer by mananth(16946)

Question 381454: i need your help to this problem. can you help me?here's the prob.
A man is at a point A on the bank of a straight river. he can row in a still water at a rate which is 20 per cent faster than he can walk. if he rows downstream to a point B, which is 4 mi. below A and on the same side of the river, and then walks, in a direction which is perpendicular to the river, to a point C, 3mi. from B, it takes him the same amount of time that it thus to walk straight from A to c. if he walks back from C to B and then rows upstream to A, the return trip takes him an hour and 36min. longer. find his rate of walking, his rate of rowing in still water, and the rate of the current of the river.
Click here to see answer by mananth(16946)

Question 381570: what is
xsquared-4x+4x
Click here to see answer by user_dude2008(1862)

Question 381626: What is the value or values of n in the equation 2n2-7n+6=0
Click here to see answer by ewatrrr(24785)

Question 381630: What are the values of r in the equation r2-7r-8=0
Click here to see answer by ewatrrr(24785)

Question 381625: What is the value or values in the equation p2+13p-30=0
Click here to see answer by ewatrrr(24785)

Question 381641: Please Help,
Use the chain rule of partial differentiation to find df/dt in terms of t where f(x, y) = e^(2x-3y) and x = t^2,
y = 1/t.
Check the result by direct substitution for x and y in f(x, y), followed by ordinary differentiation with respect
to t.
Hence show that when t = 1, df/dt = 7/e.
Thank You

Click here to see answer by Fombitz(32388)

Question 381757: How do you solve 2(x+1)^2=3x+7 using the quadratic equation??
Click here to see answer by stanbon(75887)

Question 381773: Solve
5x^2+8=-12x
Click here to see answer by ewatrrr(24785)

Question 382093: Could you explain step by step how to solve this using the quadratic formula
(1/4)x^2+17/4=2x
Click here to see answer by richard1234(7193)

Question 382103: What is the solution of 12x^2-3x-1=0
gbergpmp@gmail.com
Click here to see answer by richard1234(7193)

Question 382105: What is the solution (1/2x)-(1/(3x+1)=2
Click here to see answer by unlockmath(1688)

Question 382436: What is the value of z in the quadriatic equation z2-4z+4=0
Click here to see answer by solver91311(24713)

Question 382443: The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length and width of the rectangle?
Click here to see answer by solver91311(24713)

Question 382467: Use the quadratic formula to solve the equation x^2-5x=-7
Click here to see answer by solver91311(24713)

Question 382465: For the following equation, state the value of the discriminant and then describe the nature of the solutions. 13x^2+4x+20=0
What is the value of the discriminant? one real solution, two imaginary solutions, two real solutions?
Click here to see answer by solver91311(24713)

Question 382523: Hello,
My instructions were to "Graph the quadratic function. Label the vertex and axis of symmetry. "
However, i dont understand this problem:

I tried using the -b/2a formula , and i got the answer 3.
Then i made a t-chart, to get other points to make my parabola, but the numbers were very off, (one of my 'y' coordinates came out to 32) . I dont think i did it right, and im not good at algebra what so ever, so i am absolutely positive i got it all wrong.
Thank you in advance,
Jackie
Click here to see answer by scott8148(6628)

Question 382612: My question asked for me to find b� - 4ac and the real number solution for the given equation
-x� + 8x � 15 = 0

Click here to see answer by robertb(5830)

Question 382592: I need help solving
√-x + 7 = x - 1

Click here to see answer by mananth(16946)

Question 382623: write the quadratic equation with a lead coefficient of 1 whose roots are 3 and 2
Click here to see answer by robertb(5830)

Question 382653: I need help with finding all intercepts for the graph of the quadratic function
f(x) = 5x� - 38x + 21
Click here to see answer by kingme18(98)

Question 382662: my book is asking me if in a complex number system, any quadratic equation has one or two solution? is this fact true,i am not sure?
Click here to see answer by solver91311(24713)

Question 382662: my book is asking me if in a complex number system, any quadratic equation has one or two solution? is this fact true,i am not sure?
Click here to see answer by rfer(16322)

Question 382680: My question is if two numbers have the sum of 6 can be represented by x and x +6. this problem do not seem to be a true statement What are your thoughts?
Click here to see answer by kingme18(98)

Question 382699: to solve 2x - x^2 = 0 by the quadratic formula, let a =-1, b =2, and c = 0, is his true.
Click here to see answer by kingme18(98)

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