SOLUTION: Factor the Polynomial Completely. 64x^3 + y^3 I know this uses the "Sum of Cubes" formula... a^3+b^3= (a+b)(a^2-ab+b^2), but I'm not sure how to start this.

Algebra ->  Expressions-with-variables -> SOLUTION: Factor the Polynomial Completely. 64x^3 + y^3 I know this uses the "Sum of Cubes" formula... a^3+b^3= (a+b)(a^2-ab+b^2), but I'm not sure how to start this.      Log On


   



Question 282381: Factor the Polynomial Completely.
64x^3 + y^3
I know this uses the "Sum of Cubes" formula... a^3+b^3= (a+b)(a^2-ab+b^2), but I'm not sure how to start this.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a^3=(4x)^3
b^3=y^3
a=4x
b=y