Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 259992: write a quadratice equation having the given numbers as solutions -7 and 1
use standard form, x as a variable
Click here to see answer by stanbon(75887)

Question 259996: solve 3x^2-7x-13=0find x-intercepts of f(x)=3x^2-7x-13 what are the solutions x= what are the x-intercepts (ordered pair
Click here to see answer by checkley77(12844)

Question 260009: a farmer decides to enclose a rectangular garden using the side of a barn as one side of the rectaangle. what is the maximum area that the farmer can enclose with 60ft of fence? what should the dimensions of the garden be to give this area?
maximum area that the farmer can enclose with 60 ft of fence is ______ sq ft dimensions of the garden to give this area is 30 ft by _____ ft

Click here to see answer by richwmiller(17219)

Question 259988: solve by completing the square: x^2+7/2x=7
Click here to see answer by ankor@dixie-net.com(22740)

Question 260010: find & label the vertex(ordered pair) and the line of symmetry, graph the function: f(x)=1/2x^2

Click here to see answer by checkley77(12844)

Question 259995: solve by completing the square: x^2+7/2x=7
Click here to see answer by edjones(8007)

Question 260127: i dont understand how to factor 6x squared - 13x -8 = 0
Click here to see answer by dabanfield(803)

Question 260158: Solve for 4x^2-4x-3=0
Click here to see answer by richwmiller(17219)

Question 259994: give exact and approximate solutions to three decimal places: y^2-8y+16=1

Click here to see answer by mananth(16946)

Question 260235: how to solve this quadratic equation for x^3+11x-60=0?
Click here to see answer by richwmiller(17219)

Question 260230: Solve:
x^2+4x+3=0
Click here to see answer by stanbon(75887)

Question 260229: Solve:
2x(x+5)=100
Click here to see answer by stanbon(75887)

Question 260228: Solve using the quadratic formula.
3x^2-7x+3=0

Click here to see answer by richwmiller(17219)

Question 260228: Solve using the quadratic formula.
3x^2-7x+3=0

Click here to see answer by Alan3354(69443)

Question 260228: Solve using the quadratic formula.
3x^2-7x+3=0

Click here to see answer by stanbon(75887)

Question 260237: Intermediate and Elementary Algebra 3rd Edition
ISBN: 9780073533490
6.4 Exercise: 90
Melanie can paint a certain barn by herself in X days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete in one day by working together. Evaluate the expression for x � 5.

Click here to see answer by stanbon(75887)

Question 260277: Solve this equation: x^3+729=0
I know this much: 1st solution is -9
(x+9)^3=0
(x+9)[x^2-9x+81]
This is where I'm stuck..When I use the quadratic formula I get
9 +/-square root of 243 over 2
Now what? The answer is 9 +9i 'square root' of 3 over 2. How do you get that?
Click here to see answer by drk(1908)

Question 260286: i don't really understand the nature of roots in a quadratic function. it says: for what values of k does kx^2-2x+3=0 have two different real roots? i'm not sure what to plug in or how to continue on from here...
Click here to see answer by edjones(8007)

Question 260355: r^2-10=3r solve for factoring?
Click here to see answer by drk(1908)

Question 260355: r^2-10=3r solve for factoring?
Click here to see answer by richwmiller(17219)

Question 260425: Can you please solve this 3x^2-5x-13=0
Click here to see answer by richwmiller(17219)

Question 260430: Hi!
Can you please help me find the product of this equation?
(-4x - 3y)(2x - 9y + 1)
I get confused on how to break this down. Should I use FOIL?
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 260426: Can you please find the x and y intercepts for f(x)=3x^2-5x-13
Click here to see answer by checkley77(12844)

Question 260417: Cany you please solve this? -0.2x^2+12x+11
Click here to see answer by checkley77(12844)

Question 260499: I need help solving for y=-3x^2-6x-5. I need to solve and find coordinates to beable to graph this. I know you substitute 0 for x and y however I get lost when I have to solve for the squared part. Thanks
Click here to see answer by dabanfield(803)

Question 260559: Could you help solve the quadratic equatin by completing the square
2x^2 - 6x + 5
Thank You,
Stacie Rihl
Click here to see answer by onlinetutor365.com(14)

Question 260559: Could you help solve the quadratic equatin by completing the square
2x^2 - 6x + 5
Thank You,
Stacie Rihl
Click here to see answer by jim_thompson5910(35256)

Question 260578: Good evening! I am not sure this is the right forum to ask this exact question, but I hope someone can answer it for me.
Find the Product of:
(4k-3)(4k^3-3k^2+4k-2)
Thank you guys!
Click here to see answer by navin2010(3)

Question 260596: 2t^2+9t+7=0
Click here to see answer by scott8148(6628)

Question 260597: v^2-9v+20=0
Click here to see answer by scott8148(6628)

Question 260600: y^2-12y=-31
Click here to see answer by richwmiller(17219)

Question 260601: I don't know where to post this, hope someone can help
p=c+b+4a solve for c
Click here to see answer by richwmiller(17219)

Question 260601: I don't know where to post this, hope someone can help
p=c+b+4a solve for c
Click here to see answer by mananth(16946)

Question 260624: 18z + 45 + z^2?

Click here to see answer by mananth(16946)

Question 260820: I need to factor 25w^2 - 121 completely.

Thanks so much for your help.

Click here to see answer by Theo(13342)

Question 260820: I need to factor 25w^2 - 121 completely.

Thanks so much for your help.

Click here to see answer by richwmiller(17219)

Question 260892: state the descriminant for x^2+3x-4
Click here to see answer by richwmiller(17219)

Question 260892: state the descriminant for x^2+3x-4
Click here to see answer by drk(1908)

Question 260821: Use the quadratic formula to solve the equation.
2x^2-3x=-10

The solution set would be?

Thanks so much for your help.
Click here to see answer by checkley77(12844)

Question 260819:
I need to factor
24-11w+w^2= ?

Thanks so much for your help.
Click here to see answer by checkley77(12844)

Question 260942: x^3-126=0
we are solving through quadratic techniques
can yo help me please?
Click here to see answer by drk(1908)

Question 260990: t^5-256t=0
I took a t out and got: t(t4-256)=0
what do i do now?
Click here to see answer by Alan3354(69443)

Question 260990: t^5-256t=0
I took a t out and got: t(t4-256)=0
what do i do now?
Click here to see answer by richwmiller(17219)

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