SOLUTION: Solve each equation a. x^2+15x=0 b.12x^2+7x-12=0 c.3x^3=27x

Question 1157725: Solve each equation

a. x^2+15x=0
b.12x^2+7x-12=0
c.3x^3=27x
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
--------------------
a. x^2+15x=0
b.12x^2+7x-12=0
c.3x^3=27x
--------------------

a:
Factorize and use Zero Product Principle.

b:
At least try to factorize, but if not factorable, then use general quadratic solution formula.

c:
Try like this:

and you should know how to finish from here.
RELATED QUESTIONS
3x^3-27x-7x^2+63=0 Solve for... (answered by Alan3354)

Solve each equation (a) p^2-8p=0 (b)... (answered by stanbon)

SOLVE CUBIC EQUATION 15X^3 + 11X^2 - 12X =... (answered by stanbon)

Question: Which equation describes an ellipise? (A) -3x^2-7x-3y^2-9+0 (B)... (answered by venugopalramana)

Which equation describes an ellipise? (A) -3x^2-7x-3y^2-9+0 (B) 2x^2-7x+4y^2-9y= -13 (answered by venugopalramana)

Solve... (answered by mananth)

Hi all, I need to find out how find each of the following limits. I dont expect all the... (answered by Edwin McCravy)

Solve Each Equation Using The Method of Completing the Square 1.) {{{ x^2=35-2x }}} (answered by Edwin McCravy)

Question: Which equation describes an ellipise? (A) -3x^2-7x-3y^2-9+0 (B)... (answered by venugopalramana)