Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 333040: I need to solve these two problems by completing the square but I'm not exactly sure how to do it.
x^2 - 3x - 15 = -5
x^2 - 17x = -10x - 6
Click here to see answer by vksarvepalli(154)

Question 333133: Solve the following quadratic equations: P^2+6p=0
Click here to see answer by vleith(2825)

Question 333135: x= -b +-√b^2-4ac/2a
Solve the following quadratic equations using the quadratic formula.
3x^2-8x=-2
Click here to see answer by checkley77(12569)

Question 333266: Write and equation of the line containing the given point and perpendicular to the given line. (5,-4);9x+7y=4
Click here to see answer by benazir.sj@gmail.com(109)

Question 333372: My work truck has a ramp that is 36'' off the ground. The length of my ramp is 144". How far does my my ramp extend using the Pythagorean Theorem?
Equation is: 36^2 + x^2 = 144 solve for x

This is a question asked by my teacher, any help would be greatly appreciated!
Click here to see answer by solver91311(16897)

Question 333379: (x+3)^2 = (x-1)^2 The statement above is true for which of the following values of x ?
(a) - 1 only (b) - 1 and 3 (c) - 3 and 1 (d) - 3 and 3
(e) - 2√2 and 2√2 (approximately - 2.83 and 2.83)
Click here to see answer by richwmiller(9143)

Question 333384: Please help me solve this equation

x2-2x-13=0
Click here to see answer by solver91311(16897)

Question 333453: Okay so I'm completely stuck on this problem---
A zookeeper has 500ft of fencing and want to build a rectangular fence, give a quadratic equation that relates the area to the length.
So, my question is: How do you do this problem? (Or just the first couple of steps).
Click here to see answer by josmiceli(9697)

Question 333508: The difference of the present ages of two brothers is 4 years,5years ago,if the product of their ages was 96,find their ages.
Click here to see answer by mananth(12270)

Question 333620: i need help to understand how to solve an equation with variables on both sides of the equal sign the problem is -v+5+6v=1+5v+3
Click here to see answer by Alan3354(30993)

Question 333645: Solve (v-4)^2-48=0 where v is a real number. Simplify your answer as much as possible.

Click here to see answer by jim_thompson5910(28598)

Question 333540: Completely factor -24x-112
Click here to see answer by Alan3354(30993)

Question 333672: find the value or values of p in the quadratic equation p^2+13p-30=0
Click here to see answer by jim_thompson5910(28598)

Question 333758: how do I factor 180m^2n - 5n^3?
Click here to see answer by mananth(12270)

Question 333752: Given the equation p = q2 + 5q +2. Find the values of q corresponding to
p = -2.
Click here to see answer by nerdybill(6963)

Question 333752: Given the equation p = q2 + 5q +2. Find the values of q corresponding to
p = -2.
Click here to see answer by mananth(12270)

Question 333764: Use the quadratic formula to solve the equation:
What is the solution set?
x^2-5x=-7
Click here to see answer by stanbon(57407)

Question 333763: 1) What is the value of the discriminant?
11x^2-7x-14=0
2) Does it have two real solutions, two imaginary solutions, or one real solution?
Click here to see answer by stanbon(57407)

Question 333762: Please Help! I need to divide this but I am stuck!
(28b^3+27b^2+26b+53)/(4b+5)
Click here to see answer by stanbon(57407)

Question 333790: An angry construction worker throws his wrench downward from a height of 128 feet with an initial velocity of 32 feet per second. The height of the wrench above the ground after t seconds is given by S (t) =-16t 2 -32t +128. What is the height of the wrench after 1 second? How long does it take for the wrench to reach the ground?
Click here to see answer by Earlsdon(6287)

Question 334086: Out of a straight line, parabola and hyperbola which equation represents which?
y=x² + 1
y= 2x
y=2
y= 2/x
y=2-x²
y=x
xy=2
xy=-1
I am in great need of assistance and any help if gratefully received.
Click here to see answer by user_dude2008(1861)

Question 334106: multiply and simplify
(1/3 x^4)(2/3 x^3)=
4/36x 8/27x
Click here to see answer by stanbon(57407)

Question 334105: use the five step problem solving process
translate
reword
carry-out
check
state
for a holiday party marcus is making a five layer torte which consist of 5-9 inch diameter cake layers with a cream topping on each layer. he knows that one recipe of cream will cover 60 square inches of cake. how many batches of the topping must he make to complete his torte? (use n=3.14 as an approximate value)
Click here to see answer by stanbon(57407)

Question 334094: A carpenter is building a rectangular room with a fixed perimeter of 312 feet, what dimension would yield the maximum area? What is the maximum area?
Click here to see answer by jrfrunner(365)

Question 334102: use the five step problem solving process
translate
reword
carry-out
check
state
a cubic box measuring 55 centimeters on each side. If the content are worth $0.17 per cubic centimeters. How much are the content worth? (use v=5^3)
Click here to see answer by Alan3354(30993)

Question 334099: use the five step problem solving process
translate
reword
carry-out
check
state
the earth is approximately 92,900,000 miles from the sun. if 1 mile =1.61x10^3. what is the distance to the sun?
Click here to see answer by Alan3354(30993)

Question 334101: use the five step problem process
translate
reword
carry-out
check
state
a square support unit in a t.v. set is made with a side measuring 5 centimeters. A new model being designed for the upcoming year will have a large square with a side measuring 5.3 centimeters. By how much will the area of the square be increase?
Click here to see answer by solver91311(16897)

Question 334116: Given the function f(x)=5x^2-10x-4, what is the domain of f?
Click here to see answer by Edwin McCravy(8912)

Question 334116: Given the function f(x)=5x^2-10x-4, what is the domain of f?
Click here to see answer by solver91311(16897)

Question 334153: Please help me solve 4 + 4/x - 3/x^2 divided by 4 - 8/x + 3/x^2
Click here to see answer by vleith(2825)

Question 334180: I need help solving an equation please. I need to solve the equation
The square root of x over the square root of x -3 plus 5 over the square root of x.
Click here to see answer by solver91311(16897)

Question 334223: need help solving x2 − 2x − 13 = 0 using indian method
Click here to see answer by solver91311(16897)

Question 334267: Tickets=-0.2^2+12+11
Does the graph of this equation open up or down? How did you determine this?
Click here to see answer by solver91311(16897)

Question 334288: Use algebraic tests to check the following for symmetry with respect to the axes and the origin. 2x-8^20=0 "^20=power of
Click here to see answer by stanbon(57407)

Question 334490: t^-4/t^-6
answer t^2
Click here to see answer by solver91311(16897)

Question 334492: simplify
(2p^-2q^2/3p^2q)^3
Click here to see answer by vleith(2825)

Question 334385: Please help me solve this equation: .
Click here to see answer by jim_thompson5910(28598)

Question 334516: how to solve by what amount does the sum of the roots exceed the product of the roots of the equation (x _ 5)(x + 2) = 0?
Click here to see answer by Alan3354(30993)

Question 334554: Solve each equation by factoring or by using the property if x^2=k, then x=+or-the square root of K:
(4n-1)^2=16
Click here to see answer by jim_thompson5910(28598)

Question 334561: Use the quadratic formula to solve each:
y^2+13y+22=0
x(2x+3)-1=0
x^2+24=0
Click here to see answer by jim_thompson5910(28598)

Question 334640: write a quadratic equation when the solutions are 3 and 7
Click here to see answer by solver91311(16897)

Question 334640: write a quadratic equation when the solutions are 3 and 7
Click here to see answer by benazir.sj@gmail.com(109)

Question 334675: A newspaper delivery person in a car is tossing folded newspapers from the car window to driveways. the speed of the car is 30 feet per secound and the driver does not slow down. the newspapers are tossed horizontally from a height of 4 feet above the ground. the height of the papers as they are thrown can be modeled by y=-16t^2+4 and the distance they travel to the driveway is d=30t.
a. how long does it take for a newspaper to land?
b. from how many feet before the driveway must the papers be thrown?
c. the delivery person starts to throw the newspapers at an angle and the height of the papers as they can now be modeled by y=-16t^2+12t+4. how long does it take the papers reach the ground now?
Click here to see answer by solver91311(16897)

Question 334729: X squared = x+42
Confused and not able to come up with an answer that works. I would appreciate your help with this one.
Click here to see answer by mananth(12270)

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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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