SOLUTION: Factor completely. If prime, say so. a. 40x^3-64x^2y b. 125r^3-8s^3

Algebra.Com
Question 318589: Factor completely. If prime, say so.
a. 40x^3-64x^2y
b. 125r^3-8s^3
Answer by JBarnum(2146)   (Show Source): You can put this solution on YOUR website!
i start with the variables first
then factor a 4 out
then factor out the 2


i see the cube but i dont think i can factor it correctly

be something like
but this doesnt seem to come out right when foiled

RELATED QUESTIONS

Factor completely. If prime, say so. 125r^3... (answered by excoastie725)
Factor completely. Say if prime: A. 40x^3-64x^2y B. 125r^3-8s^3 C. 13-14y+y^2 D.... (answered by jim_thompson5910)
Hello. I was hoping you could please help me with this problem. I have to factor... (answered by ankor@dixie-net.com)
Hello. I was hoping you could please help me with this problem. I have to factor... (answered by Edwin McCravy)
Hello. Could you please help me? I have to factor these completely, and if prime, say... (answered by romerr1)
Factor completely. If prime, say so. 5c^2 + 2c -... (answered by mananth)
Factor the following polynomials completely. If a polynomial is prime, say so: 2y^5 +... (answered by mananth)
Factor the polymomial completely. If a ploynomial is prime say so.... (answered by checkley71,jim_thompson5910)
Factor completely if it is a prime say so.... (answered by vleith)