Question

Evaluate: 2 x^2 y - 8xy^2, if x=-2 and y=3

Answer 1

I got 168 is this right

Answer 2

everywhere you see an x, replace it with -2 (since x = -2)

everywhere you see a y, replace it with 3 (since y = 3)

then evaluate

Answer 3

168 is correct. Nice work