2) x ^ 2 - 8xy 16y ^ 2 July 8, 2019 16 32 64 128 X 2 8xy 16y 2 25 X 2 8xy 16y 2 4z 2 X 2 8xy 16y 2 25z 2 X 2 8xy 16y 2 2x 8y 3
