Question

Need help ASAP!!!!

1. Factor 9x^4-74y^2
2. Factor 64x^9-125y^6
3. What are the roots of the eqyation x^2(9x+13)(11x+2)=0

Answer 1

1. No factors

2. (4x^3 - 5y^2) ( 16x^6 + 20x^3y^2 + 25y^4)

3. x = 0 (multiplicity 2), -13/9, -2/11

Explanation:

2. Using the identity

a^3 - b^3 = (a - b)(a^2 + ab + b^2) with a = 4x^3 and b = 5y^2

3. Using that either one of the factors can = zero.