Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 350627: two facing pages product of page # 210 what are page numbers?

Click here to see answer by unlockmath(1602)

Question 350711: 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. The solutions are -5,2
Click here to see answer by ankor@dixie-net.com(15656)

Question 350721: -2x squared + 5x + 3 = 0

Click here to see answer by ewatrrr(10682)

Question 350752: Can you please explain to me two ways in which quadratic and absolute value graphs are similar and two ways in which they are different.
Click here to see answer by jim_thompson5910(28595)

Question 350610: the length of a swimming pool is three times its wide less five meters,if it its volume is 304 cubic meters,its deep has 2 meters,determine the length and its wide. please, I need to find the solution using on Quadratic Formula.
please, answer to my e-mail : samuelpinedasarabia@gmail.com
Click here to see answer by mananth(12270)

Question 350830: how do you figure out the height of the max/min when drawin a quadratic parobola???
for example (x+5)(x-3)
Click here to see answer by Fombitz(13828)

Question 350834: solve for x
4x(x-8)-5x(x-7)=-4
Click here to see answer by checkley77(12569)

Question 350877: If the discriminant in the quadratic formula is a perfect square, then the quadratic equation will have ___________ solution(s).
Click here to see answer by Theo(3464)

Question 350876: Please help solve by completing the square...
x^2 + 1/2x = 1
Click here to see answer by Theo(3464)

Question 350825: how do you figure out the height of the max/min when drawin a quadratic parobola???

Click here to see answer by Theo(3464)

Question 350939: I have tried completing the square and quad formula for the following question and I am stuck..
y=2xsquared-8
I have to graph this but do not know how?..
Obviously y=-8 but how do I find x?
Thanks for any input since I seem to be having a brain fart...
Click here to see answer by jim_thompson5910(28595)

Question 350975: A plane took 4 h to fly 2200 km from saskatoon to toronto with a tail wind. Thereturn trip, with a head wind, took 5 h. Find the speed of the plane in still air and the wind speed.
Click here to see answer by dabanfield@earthlink.net(8)

Question 351063: what are the solutions of the equation x^2-12x+32=0
Click here to see answer by nerdybill(6962)

Question 351076: Can all quadratic equations be solved using factoring? If no, show a counterexample.
Click here to see answer by edjones(7569)

Question 351077: What is wrong with the solution of the student?
x(x+3) = 9
x = 9 or x+3 = 9
x = 6
So the roots are 9 and 6.
Click here to see answer by mananth(12270)

Question 351075: Why is it important to write the quadratic equation in standard form before factoring?
Click here to see answer by merlanugas_11(2)

Question 351088: A page for a journal contains 70 square inches of type written words. The height of a page is twice the width. If the Margin around the type is to be 2 inches uniformly, what are the dimensions of a page?
Click here to see answer by mananth(12270)

Question 351110: planting grass on the rectangular plot of land and also building a fence around the edge of the plot . The plot is 45 yards long and 30 yards wide . how much area do we need to cover with grass seed ? how many feet of fencing do we need ?
Click here to see answer by nerdybill(6962)

Question 351208: factor r^2+14r+49
Click here to see answer by rfer(12662)

Question 351279: How do you write an equation when you are given the points?
Click here to see answer by solver91311(16897)

Question 351499: 1.a piece of wire 44cm long is cut into two parts and each part is bent to form a square.if the total area of two square is 65sq.cm.find the perimeter of two square.
2.a particle is projeced from ground level so that its height above the groungd afer t seonds is given by 20t-5t^2m. after how any seconds is it 15m above the ground?can you explain briefly why there are two possible answers
Click here to see answer by mananth(12270)

Question 351395: 1. g(x)=3x^2+24x+36
2. g(x)=7x^2-14x-7
3. g(x)=9x^2+36x+28
4. g(x)=8x^2-48+47
Click here to see answer by Fombitz(13828)

Question 351378: what order do i use to solve this
w=91.4-(91.4+5)(0.478+0.301 sqrt 35-0.02*35
Click here to see answer by Fombitz(13828)

Question 351760: The length of a rectangle has the double of its wide more four meters. If the total area is 336 m2 , What are its measures? please, would you like help me? .

Click here to see answer by stanbon(57361)

Question 351803: multiply and simplify sqrt8x^5 * sqrt 3x^2 I have tried to figure out how to solve this I keep getting an answer of 2x^3sqrt 6x The steps and answer would be greatly appreciated thank you
Click here to see answer by scott8148(6628)

Question 351950: A model for a company's revenue from selling a software package is
r = -2.5p (squared) + 500p, where p is the price in dollars of the software. What price will maximize revenue? Find the maximum revenue.
Click here to see answer by stanbon(57361)

Question 352006: this is a rational equation
Z+x + 5z +z
Zx^2 z^2x

Click here to see answer by Fombitz(13828)

Question 352114: Solving Radical Equations (quadratic)
I am given a right triangle. One leg is a=7mm and the hypotenuse is c=7.4mm.
It says to find the length of the unknown side b of the given right triangle
and to also give the exact length and a one decimal place approximation.
Click here to see answer by Fombitz(13828)

Question 352169: how do I find the vertex in fraction form for the following problem:
f(x)=-3x^2+2x=5
Click here to see answer by Fombitz(13828)

Question 352195: B = 2AD + 3CD
solving for A
Click here to see answer by Fombitz(13828)

Question 352198: Three times the difference between a number and twenty-one is fifty. Find the number.
Click here to see answer by nyc_function(2733)

Question 352192: x2 + 3 = 4x2 + x - 1
The 2 are exponents.
Click here to see answer by nerdybill(6962)

Question 352193: square root 3x+2=3x
Click here to see answer by Fombitz(13828)

Question 352265: Find the exact solution to 6x^2+1= -8x by using the Quadratic Formula.
A.) -4±√10
B.) (-4±√22)/6
C.) (-2±2√10)/3
D.) (-4±√10)/6
Click here to see answer by jim_thompson5910(28595)

Question 352418: [-12 + (-18)](-16 + -4)
[-12 + (-18] = -30
-30(-16 + -4) = 480 + 120
480 + 120 = 600
Did I calculate this correctly
Click here to see answer by mananth(12270)

Question 352374: What is the solution to (2t-2)(2t+2) ?
Click here to see answer by jim_thompson5910(28595)

Question 352459: Do you think each generalization is true for all integers a, b, c, and d?
Substitute integers and find counterexamples, if possible...
A. (a + b) divided by c = a divided c + b divided c.
B. a divided (b + c) = a divided b + a divided c.
C. (a + b)(a b) = ab.
D. If a < b, then a2 < b2
E. If a < b, then c-a < c-b
A. TRUE IF C IS NOT ZERO
B. FALSE,
C. FALSE,
D. TRUE
E. FALSE,
I don't know what counter examples really mean
Click here to see answer by edjones(7569)

Question 352586: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
F(x)=1/5(x+1)^2+7
Any help is greatly appreciated. These always confuse me.
Thank you in advance!
Click here to see answer by Fombitz(13828)

Question 352607: Find the vertex, the line of symmetry, the maxiumum or minimum value of the quadratic function, and graph the function.
f(x)=-2x^2+2x+3
The x-coordinate of the vertex is:
The y-coordinate of the vertex is:
The equation of the line of symmetry is x=
The maximum/minimum of f(x) is:
The value, f(1/2)=7/2 is minimum or maximum?
So far, I have tried to work the problem. This is what I have:
f(x)=-2x^2+2x+3, so you use (-b/2a,4ac-b^2/4a)
Therefore, if -b/2a=-(2)/2(-1)=1
Then put 1 back into the equation.
f(1)=-2(1)^2+2(1)+3
Using FOIL, I come up with 1.
This where I get confused. Is the x-coordinate 1? How do i come up with y-coordinate?
Is the line of symmetry also 1?
I think I confuse myself the most when I try to apply the FOIL method?
Any help is so very much appreciated! Thanks in advance!
Click here to see answer by Fombitz(13828)

Question 352626: x3rd + x2nd - 2x =2
Click here to see answer by Jk22(389)

Question 352720: find the equations of the asymptof of the curve; y = 2x - 3 / X + 1
Click here to see answer by Fombitz(13828)

Question 352787: Hi im in the 10th grade and I definitley need help in math .. right now we are working on quadratic formula and the discrminent.
can you show me how to solve
4x-6=-12x
Click here to see answer by jim_thompson5910(28595)

Question 352786: x squared-8x-29=(this equal sign has 3 lines)(x+a)squared+b, where a and b are constants. find the value of a and the value of b
Click here to see answer by solver91311(16897)

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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, 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