Question

Can someone please help me with this. Show your work please.

-2x² - 5x
if x = -4

Answer 1

-2(-4)^2 - 5(-4) =

-2(16) - (-20) =

(-32) - (-20) =

-12

Answer 2

-2x^2 - 5x

= -2-4^2 - 5*-4

= -2(-4 * -4 ) - (-20)

= -2(-16) +20

= -32 + 20

= -12

Explanation: