Pre-calc

Solve these equations for x by factoring:

1) x(x-4)=12
2) 2x^3+50x=20x^2
3) 2x^2+x-6=0

Thank you for all your help!!!!

1. 👍 0
2. 👎 0
3. 👁 131
1. Pre calculus? This is stock Algebra II.

put the equations in the form of

ax^2+bx+c=0 then factor.

for instance, c is already in that form.

2x^2+x-6=0
(2x-3)(x+2)=0
x= 3/2 x=-2

do the others the same method.

1. 👍 0
2. 👎 0

Similar Questions

1. Math

Factoring / solve for x 5.50x = 0.02x^3 + 5x

asked by Steph on November 28, 2012
2. math

please anwer these: 1) how can i multiply and divide polynomials containing radicals? 2) how can i solve radical equations? 3) how can i solve qudratic equations by factoring ? 4) how can i solve quadratic equations graphically ?

asked by chen on August 13, 2014
3. maths

1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them

asked by Michael on October 24, 2016
4. maths

1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them

asked by Saphina AlMatary on October 24, 2016
5. maths

1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them

asked by Michael on October 25, 2016
6. Pre-Calculus Help?

A biologist determines that the path of a bee from its hive to its foraging site can be described by the parametric equations x- 4t-1 and y-22+3t-4. Which of the following equations is the curve described by these parametric

asked by ADOG on May 18, 2018
7. 12th math

A biologist determines that the path of a bee from its hive to its foraging site can be described by the parametric equations x= 4t-1 and y=2t^2+3t-4. Which of the following equations is the curve described by these parametric

asked by line on May 18, 2018
8. math

A cab charges \$1.50 for the first mile and \$0.50 for each additional mile. Write and solve an inequality to determine how many miles Sharon can travel if she has \$25 to spend. (2 points) \$0.50 + \$1.50x ¡Ü \$25; x ¡Ü 16 miles

asked by oscar on September 5, 2015
9. Algebra 1

Are these right? xy - 3x - 8y + 24 (3x-y)-(8y+24) 8y+24 4x^2 + 20x + 5y +xy 36x+(5y+x) 36x-5y I don't think so it's right.Your question xy-3x-8y+24 is itself the answer.It cannot be further calculated bcause it doesn't have the

asked by mike on March 8, 2007
10. math

First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational numbers, give exact solutions

asked by anonymous on September 27, 2018

More Similar Questions