### Home > PC > Chapter 1 > Lesson 1.1.2 > Problem 1-24

1-24.

Suppose , find:

Substitute

for every in the function.

Use ( ) when substituting to avoid errors.

Follow the same steps for (b).

Do not forget the middle term when expanding

.

1-24.

Suppose , find:

Substitute

for every in the function.

Use ( ) when substituting to avoid errors.

Follow the same steps for (b).

Do not forget the middle term when expanding

.