Question

Evaluate -3x * 3 - 4x for
x = -1.

Answer 1

13

Answer 2

replace x with -1 and evaluate

-3x * 3 - 4x

-3(-1) * 3 - 4(-1)

I'll let you finish up

Answer 3

@HelpMePlease!! -3x
you have to multiply x to the 3rd power

Answer 4

\[\large -3x^3 - 4x\]

\[\large -3(-1)^3 - 4(-1)\]

\[\large -3(-1) - 4(-1)\]

\[\large 3 + 4\]

\[\large 7\]

so, \[\large -3x^3 - 4x = 7\] when x = -1