1) 64y^2 - 36 = (8y)^2 - 6^2 = (8y - 6)(8y + 6)
2) (2p + 3q)^2 = (2p + 3q)(2p + 3q) = 4p^2 + 6pq + 9q^2
3) (5x - 3y)^2 = (5x - 3y)(5x - 3y) = 25x^2 - 15xy - 15xy + 9y^2 = 25x^2 - 30xy + 9y^2
4) 3ab + a^2 = a(3b + a)
5) 2cx - 4cx^2 = 2cx(1 - 2x)
1) 64y^2 - 36 = (8y)^2 - 6^2 = (8y - 6)(8y + 6)
2) (2p + 3q)^2 = (2p + 3q)(2p + 3q) = 4p^2 + 6pq + 9q^2
3) (5x - 3y)^2 = (5x - 3y)(5x - 3y) = 25x^2 - 15xy - 15xy + 9y^2 = 25x^2 - 30xy + 9y^2
4) 3ab + a^2 = a(3b + a)
5) 2cx - 4cx^2 = 2cx(1 - 2x)