Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 413884: Identify the maximum or minimum (vertex), zeros, and axis of symmetry line and show the graph.
y=2x-1/4x^2
Click here to see answer by ewatrrr(10682)

Question 413887: Identify the maximum or minimum (vertex), zeros, and axis of symmetry line and show the graph.
y=x^2-4
Click here to see answer by ewatrrr(10682)

Question 413997: Find the solution for the following equation:
-3/5=x-3/10
Click here to see answer by ewatrrr(10682)

Question 413996: Find the solution for the follow equation:
13a=-10+12a
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Question 414005: Y=2x to the 2nd power
Click here to see answer by solver91311(16897)

Question 413992: Simplify as much as possible. If undefined, write NONE in the answer box:
5(-8-3)+5(4-5) divvied by 3(-8)+6(-9)
Click here to see answer by ewatrrr(10682)

Question 413991: Apply the distributive property to the following expression, and then simplify the result:
20(-1/5x+1/20y)
Click here to see answer by ewatrrr(10682)

Question 414013: write a quadratic equation in the variable x having the given numbers as solutions. type the equation in standard form, ax^2+bx+c=0, where a,b, and c are intergers(no fractions). Solutions -3/8,5/8.
Click here to see answer by ewatrrr(10682)

Question 414015: A one compartment vertical file is to be constructed by bending the long side of an 8 inch by 20 inch sheet of plastic along two lines to form a U shape. How tall should the file be to maximize the volume that it can hold?
Click here to see answer by MathLover1(6638)

Question 414116: solve each equation by graphing the related function. i'm not sure what we're supposed to find, the zeros? i know the answer is (4, -4), but i'm not sure how to get this answer.
x^2=16
x sqaured equals 16
Click here to see answer by ewatrrr(10682)

Question 414117: (x-4)^2=64
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Question 414121: (2t-3)^2+13t=14
Solve for t
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Question 414275: 6x^2+27x+33=0 by using factorization.
Click here to see answer by ewatrrr(10682)

Question 414332: one root of the quadratic equation x2-kx+8=0 is negative of the other. the value of k is
Click here to see answer by Edwin McCravy(8909)

Question 414332: one root of the quadratic equation x2-kx+8=0 is negative of the other. the value of k is
Click here to see answer by Theo(3464)

Question 414397: how do i solve and graph y=x^2+6x-7? i know i have to use x=-b/2a but i'm confused on exactly how this works. i've been sick and have missed 4 days of school and need help. thanks!
Click here to see answer by woolybear(13)

Question 414468: please help me find the roots, lines of symmetry, and vertex for y=-x2+5x-4
Click here to see answer by stanbon(57387)

Question 414468: please help me find the roots, lines of symmetry, and vertex for y=-x2+5x-4
Click here to see answer by rfer(12670)

Question 414468: please help me find the roots, lines of symmetry, and vertex for y=-x2+5x-4
Click here to see answer by MathLover1(6638)

Question 414402: how do you find the answer to the problem 2n^-12n-14=0 ? using the quadratic equation .
Click here to see answer by richard1234(5390)

Question 414502: Solve the following equation:
-3/8y=-12
Click here to see answer by rfer(12670)

Question 414501: Solve the following equation:
-x/6=-2/7
Click here to see answer by rfer(12670)

Question 414501: Solve the following equation:
-x/6=-2/7
Click here to see answer by algebrahouse.com(1079)

Question 414500: Simplify both sides of the following equation as much as possible then solve:
-3.3+6.1=2x-2.8-x
Click here to see answer by rfer(12670)

Question 414499: Simplify the following expression:
1/3(-15)^2
Click here to see answer by rfer(12670)

Question 414504: Solve the following equation:
6(x+4)=12
Click here to see answer by rfer(12670)

Question 414512: Solve the following equation:
-(5x+7)-(7x-5)=7-(3x+1)
Click here to see answer by jim_thompson5910(28598)

Question 414512: Solve the following equation:
-(5x+7)-(7x-5)=7-(3x+1)
Click here to see answer by rfer(12670)

Question 414505: solve the following equation:
1/7(x-20)=1/5(x-28)
Click here to see answer by algebrahouse.com(1079)

Question 414574: what is the perimeter of a quadrilateral that has an area of 100 square inches
Click here to see answer by praseenakos@yahoo.com(507)

Question 413994: Find the LCD for the following then add as indicated:
13/42+11/56
Click here to see answer by Edwin McCravy(8909)

Question 414893: solve this equation by completing the square -4r^2+21r=r+13

Click here to see answer by stanbon(57387)

Question 414895: I am having trouble with a quadratic word problem. The word problem is as follows:
The sides of one square have length 3 m more than the sides of a second square. If the area of the larger square is subtracted from 4 times the area of the smaller square, the result is 36 m^2. What are the lengths of the sides of each square?
Click here to see answer by stanbon(57387)

Question 414929: Find an equation of the parabola which contains a minimum point at (2,-1) and ordered pair (-1,7)
Click here to see answer by Edwin McCravy(8909)

Question 414769: Which of the following is a quadratic equation? X^3 - 27 = 0 Or X^2 - 27=0 Or X- 27=0 Or 1/x - 27 = 0? Explain why please.
Click here to see answer by richard1234(5390)

Question 415015: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.
f(x)=-(x+3)^2-1
I have been having problems with these and can't seem to get it right. Can someone help please!
Click here to see answer by woolybear(13)

Question 415041: 5x+3= -4(1-x)
Solve x
Click here to see answer by algebrahouse.com(1079)

Question 415085: 2 consecutive even numbers whose product is 48
could u list the steps and answer?
Click here to see answer by mananth(12270)

Question 415084: (v)2+8v+16=10
could u list the steps and formula? answer?
Click here to see answer by mananth(12270)

Question 415103: What are the x-intercepts of f(x)=x^2-9x+6
Click here to see answer by robertb(4012)

Question 415129: I don't understand this problem.
The square of a number exceeds that number by twelve.Find the number(two answers).
Click here to see answer by mananth(12270)

Question 415129: I don't understand this problem.
The square of a number exceeds that number by twelve.Find the number(two answers).
Click here to see answer by sudhanshu_kmr(1152)

Question 415139: I'm having trouble with these two problems.
The width of a rectangle is two thirds of its length,and its area is 216 square meters. Find the dimensions.

The width and length of a rectangle are consecutive odd integers.If the length is increased by five feet,the area of the resulting rectangle is 60 square feet.
Find the dimensions and the area of the original rectangle.
Click here to see answer by ewatrrr(10682)

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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, 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