Question

If x = − 8 and y = 2, evaluate the following expressions: (4y)² −(2x)² =

Answer 1

-192

Explanation:

x = -8

y = 2

(4y)² −(2x)² =

(4(2))² −(2(-8)² =

(8)² − (-16)² =

64 − 256 = -192