Question

What is the value of 2x^(-2)y^(-2) for x = 3 and y = -2? (1 point)

72
2(-6)-4
1/648

Answer 1

In the original equation, write (3) wherever you see x, and (-2) wherever you see y. Grind out the arithmetic, and you'll have your answer.

Answer 2

Remember that \[x^{-n} = 1/x^n\]