### Home > PC > Chapter 7 > Lesson 7.3.3 > Problem 7-121

7-121.

Use Pascal’s triangle to expand for

*and*

*for*

*.*

Use Pascal's triangle to get the coefficients quickly.

Substitute with the ( ).

You will make fewer careless errors!

7-121.

Use Pascal’s triangle to expand for

Use Pascal's triangle to get the coefficients quickly.

Substitute with the ( ).

You will make fewer careless errors!