Need 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

1. No factors

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

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

Step-by-step 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.

$7.975 or $8

Step-by-step explanation:

2.50 x 3.19 = 7.975