### Home > PC > Chapter 1 > Lesson 1.4.2 > Problem 1-150

1-150.

**Challenge:** Given: . Express

*,*

*, and*

*in terms of*

*,*

*e*, and

*f*.

The strategy is to distribute the right side so that has an term, an

*term, and a constant expression.*

Then you can match '

*' to the constant with the*

*term on the right, '*

*' to the*

*term on the right and '*

*' to the constant expression on the right.*