Question

Evaluate 3x to the power of 2 - 1 when x = 2

Answer 1

I'm assuming you mean
`(3x)^2 - 1`, not
`(3x)^(2-1)`. To evaluate this when
`x = 2`, simply evaluate the expression when the number 2 takes the place of
`x`.

Thus, we can find:

`(3 \cdot 2)^2 - 1`

`6^2 - 1`

`35`

Our answer is 35.