Question

Evaluate 4x3 + 2 for x = -1

Answer 1

Substitute the value of the variable into the equation and simplify.

-2

Answer 2

`4 {x}^(3) + 2`

Plug in -1 for x

and you'll get this:

`4 {( - 1)}^(3) + 2`

Solve it further and you'll get:

`4( - 1) + 2 \\ = - 4 + 2 \\ = - 2`

Therefore,

`4 {x}^(3) + 2`
where x = -1