### Home > CCA2 > Chapter 8 > Lesson 8.1.1 > Problem 8-23

8-23.

Find *x* if 2^{p}^{(}^{x}^{)} = 4 and *p*(*x*) = *x*^{2} − 4*x* − 3. Homework Help ✎

Since 4 = 2², what does *p*(*x*) have to equal?

*x* = −1, *x* = 5

8-23.

Find *x* if 2^{p}^{(}^{x}^{)} = 4 and *p*(*x*) = *x*^{2} − 4*x* − 3. Homework Help ✎

Since 4 = 2², what does *p*(*x*) have to equal?

*x* = −1, *x* = 5