SOLUTION: 1. what is 9x2 - 8y2 factored? 2. what is 4x4 - y2 factored? 3.what is 4x2 - 64y2 factored? 4. what is x2 - 16y2 factored?

Hi

factoring

2. 4x^24 - y^2 Note the use of ^ to indicate square (uppper case 6 on keyboard)

(2x -y)(2x +y)Note:SUM of the inner product(-2xy) and the outer product(2xy) = 0

3.4x^2 - 64y^2  

(2x - 8y)(2x+8y)Note:SUM of the inner product(-16xy) and the outer product(16xy) = 0

4. x^2 - 16^y2 

(x-4y)(x+4y)Note:SUM of the inner product(-4xy) and the outer product(4xy) = 0