### Home > CALC > Chapter 1 > Lesson 1.4.4 > Problem 1-189

1-189.

*g*(−5) = 256

Set (3*x* - 1)² equal to 49 and solve for *x*.

Substitute (*a* + 1) for *x*. Simplify.

Let *g*(*x*) = *y*. Solve for *x*. Then switch the *x* and *y*.

Remember the ±.

1-189.

*g*(−5) = 256

Set (3*x* - 1)² equal to 49 and solve for *x*.

Substitute (*a* + 1) for *x*. Simplify.

Let *g*(*x*) = *y*. Solve for *x*. Then switch the *x* and *y*.

Remember the ±.