SOLUTION: Factor the polynomial completely: x^2y-36y+6x^2-216 I factor this out to y(x^2-36)6(x^2-36) but cannot remember...do I need to factor it out again to get the final answer?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor the polynomial completely: x^2y-36y+6x^2-216 I factor this out to y(x^2-36)6(x^2-36) but cannot remember...do I need to factor it out again to get the final answer?       Log On


   

Question 516889: Factor the polynomial completely:
x^2y-36y+6x^2-216
I factor this out to y(x^2-36)6(x^2-36) but cannot remember...do I need to factor it out again to get the final answer?

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x^2y-36y+6x^2-216
y(x^2-36)+6(x^2-36)
(x^2-36)(x+6)
using identities
a^2-b^2= (a+b)(a-b)
(x+6)(x-6)(x+6)
(x+6)^2(x-6)