### Home > A2C > Chapter 2 > Lesson 2.2.3 > Problem 2-151

2-151.

For parts (d) and (f) try setting the expressions or equations equal to each other, then simplify, and explain the meaning of the results.

In part (d), the values *a* = 0 or *b* = 0 would make the two expressions equal.

In part (e), *x* ≠ 0 because it is not in the denominator.

*x* = 1 will make the expressions equal.