### Home > A2C > Chapter 9 > Lesson 9.3.1 > Problem 9-129

9-129.

Frank says that* *, while Fred does not think that the two expressions are equivalent. Who is correct?

**Justify**your answer.

Fred is correct, substitute numbers to justify.

9-129.

Frank says that* *, while Fred does not think that the two expressions are equivalent. Who is correct?

Fred is correct, substitute numbers to justify.