Question

Evaluate the expression x(2 - 4y^2) when x = -2 and y = -2

Answer 1

28

Explanation:

substitute the given values into the expression

x(2 - 4y² )

= - 2(2 - 4(- 2)² )

= - 2(2 - 4(4))

= - 2(2 - 16)

= - 2(- 14)

= 28