### Home > AC > Chapter 10 > Lesson 10.1.2 > Problem 10-21

10-21.

Simplify the expressions below.

for or Factor the numerator and denominator.

After factoring, look for a Giant One to remove.

for or Refer to part (a).

for , , or This is division with fractions. Here is a sample division problem with numbers.

Rewrite as multiplication by taking the reciprocal of the divisor.

Factor

and use the Commutative Property to rewrite the problem so there are Giant Ones. Remove the Giant Ones.