Question

Evaluate the expression below when x = -4.

4x^2 - 2x × 15

Answer 1

just substitute the -4 in place of x

Answer 2

f(x) = 4x^2 - 2x * 15 => f(-4) = ( 4(-4)^2 - 2(-4) ) * 15

Answer 3

4*16 -2(-4) +15 =

i think that there is + and not x ,yes ?

Answer 4

substitute the 4

Answer 5

there is +15 and not time 15

Answer 6

Thanks guys! /,,/