Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 244962: Word problem. "The area of a certain square is 5 more than its perimeter. What is the length of each side of the square." and if i could see the what the equation looks like to, that would be wonderful. Thanks!
Click here to see answer by Theo(3504)

Question 245016: Iam preparing for GcSE
and i still dont get it can you give me some help or useful information which could help me
Click here to see answer by Theo(3504)

Question 245016: Iam preparing for GcSE
and i still dont get it can you give me some help or useful information which could help me
Click here to see answer by solver91311(17077)

Question 245216: please help me solve this problem:
A lidless box is made from a square piece of metal by cutting 3 cm squares from the corners and bending up the sides. If the volume of the box is 60 cm^3 find the dimensions of the square piece of metal
Click here to see answer by ankor@dixie-net.com(15747)

Question 245316: Enter the quadratic equation in standard form. x^2 - 10 + 3x = (x - 2)^2 + 1

Click here to see answer by rapaljer(4667)

Question 245351: Find the possible value or values of r in the quadratic equation r^2 – 7r – 8 = 0.
Click here to see answer by dabanfield(803)

Question 245396: how many solutions does y^2= 4/7 y +2/5 have?
f(x)=-2x^2+2x+6
what is the x cordinate of the vertex?
the y cordinate of the vertex?
the equation of the line of semitry?
the minumun/maximun value of f(x)?
Click here to see answer by stanbon(57984)

Question 245437: A farmer decides to enclose a rectangular garden using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 100 feet of fence? What should the dimensions of the garden be to give this area? The maximum area the farmer can enclose 100 feet of fence is how many square feet? The dimensions of the garden to give this one is 50 feet by __ feet?
Click here to see answer by richwmiller(9144)

Question 245438: Solve for x:
5x^2=-17x-6
I have no idea where to begin. Thanks.
Click here to see answer by unlockmath(1614)

Question 245438: Solve for x:
5x^2=-17x-6
I have no idea where to begin. Thanks.
Click here to see answer by richwmiller(9144)

Question 245735: Is y = (x + 3)(x – 6) – 2x2 linear or quadratic? Identify the quadratic, linear, and constant terms.
Click here to see answer by TheProdicalSon(33)

Question 245734: Is y = (x + 3)(x – 6) – 2x2 linear or quadratic? Identify the quadratic, linear, and constant terms.
Click here to see answer by richwmiller(9144)

Question 245751: I need to find the zeros of f(x)=x^2+2ix-3.
I tried using the quadratic equation, but the i is confusing me.
Help?
Click here to see answer by jim_thompson5910(28717)

Question 245836: how would you solve this quadratic equation y squared plus 3y plus 2=o
Click here to see answer by College Student(505)

Question 245836: how would you solve this quadratic equation y squared plus 3y plus 2=o
Click here to see answer by dabanfield(803)

Question 245847: How do a use the quadratic formula to solve this partial equation..
(4x+1)^2 = 3x+4
Click here to see answer by nerdybill(7011)

Question 245847: How do a use the quadratic formula to solve this partial equation..
(4x+1)^2 = 3x+4
Click here to see answer by dabanfield(803)

Question 245847: How do a use the quadratic formula to solve this partial equation..
(4x+1)^2 = 3x+4
Click here to see answer by jsmallt9(3296)

Question 245854: Prove the quadratic formula by completing the square.
ax^2+by=-c
Click here to see answer by jsmallt9(3296)

Question 245844: if a number is added to two times its square, the result is thirty-six. Find all such numbers
Click here to see answer by dabanfield(803)

Question 245814: I need help w/step by step instruction on how to solve this word problem.
The speed of a boat in still water is 10 km/h. The boat travels 48km upstream and 48km downstream in a total time of 10 hr. What is the speed of the stream?
I think I know the answer but am unsure of how to show it, step by step, in an algebraic equation.
Thanks!
Click here to see answer by Alan3354(31538)

Question 245946: Quadratic Functions and Equations

The first question I gave it go at.
Solve.
3t^2-2=0
+2+2
3t^2=2
______
3 3

t^2=2/3 or (I don't know how to do the square root sign on here.)
_ ______ _ _ __________
V2/3 or V 2/3

Hope I did it right.

Then the next is also solve.

x^2+7=3x
Now so far all I have done is taken 3x from both sides
which brings us to
x^2-3x+7=0
At this point I am lost. Because normally I would think we would do this but I can't find anything to add up to equal 3
(x )(x )=0

So I am stuck with this problem.

Last problem I am having is one that I got so confused w/ the process that I couldn't even start it. I am just lost.

It states:
For each quadratic function, (a) find the vertex and the axis of symmetry and (b) graph the function.

g(x)=2x^2+5x-1

I know we follow the form of a(x-h)^2+k. But I am so lost at this. I know it is most likely real easy but I am lost.
Click here to see answer by richwmiller(9144)

Question 245981: 3b^2-30b=6b-60

Click here to see answer by richwmiller(9144)

Question 245986: Two imaginary solutions, no real solutions

Click here to see answer by checkley77(12569)

Question 245995: -15x^2+2+7x=0
Click here to see answer by checkley77(12569)

Question 246003: Sharing Cost.
The members of a flying club plan to share equally the cost of a $200,000 airplane. The members want to find five more people to join the club so that the cost per person will decrease by $2000. How many members are currently in the club?
Click here to see answer by oberobic(2304)

Question 246022: Find the quadratic equatiopn whose roots are 2 and 3.
Click here to see answer by nerdybill(7011)

Question 246033: solve for x: 12|1-3x|squared -5|1-3x|-28=0, i think i am thinking too much into this but i don't know need some guidance. thanks if you can get back asap that would be great. thank you for all your help.
Click here to see answer by jsmallt9(3296)

Question 246072: x2 + 8x = 3
Click here to see answer by richwmiller(9144)

Question 246091: 8x^2-18xy+9y^2...I have tried to solve this such as 8x^2-18xy+9y^2
x=2 and y=3
8(2)^2-18(2*3)+9(3)^2
From then on, I am lost and I do not even know if
what I had been doing is right.
Click here to see answer by checkley77(12569)

Question 246105: how do i get the two answers for x^2 - 2x-15=0
Click here to see answer by rapaljer(4667)

Question 246113: I am requesting assistance with the following quadratic equation
(x-2)(x^2-8x+7)
thank you
Click here to see answer by rapaljer(4667)

Question 246113: I am requesting assistance with the following quadratic equation
(x-2)(x^2-8x+7)
thank you
Click here to see answer by marcsam823(57)

Question 246123: Factor the quadratic. 2b(6b+13)=-12
I get 12b^2+26b+12=0 but not sure what to do next. May I please ask for assistance in solving this quadratic equation? Thanks

Click here to see answer by rapaljer(4667)

Question 246149: If a quadratic equation can be solved by factoring, what type of number(s) will generally be solutions?
Click here to see answer by Alan3354(31538)

Question 246150: Solve.
(y+5)(y-1)=27
Click here to see answer by richwmiller(9144)

Question 246150: Solve.
(y+5)(y-1)=27
Click here to see answer by oberobic(2304)

Question 246163: f(x)= 3x+x(x-1) what are the solutions? what are the x-intercepts?
Click here to see answer by checkley77(12569)

Question 246162: width of a triangle is 2ft less than the length, area is 24f^2, L=, w=
Click here to see answer by checkley77(12569)

Question 246086: A rectangular compost container is to be formed in a corner of a fenced yard, with 8 ft of chicken wire completing the other two sides of the rectangle. If the chicken wire is 3 ft high, what dimensions of the base will maximize the volume of the container?
Click here to see answer by oberobic(2304)

Question 246161: f(x)=x^2-7x+9
Click here to see answer by checkley77(12569)

Question 246186: (-2)=x+4
Click here to see answer by oberobic(2304)

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