Quiz on Multiplying Rational Expressions

What is the first step in multiplying rational expressions?

• Multiply the expressions directly

• Subtract the denominators

• Factor each expression if possible

• Add the numerators

In the first example, what can be factored out from the first numerator?

• 5

• 9

• 4

• r

In the second example, why can't the 7s be canceled out?

• Because they are in the numerator

• Because they are part of a larger quantity

• Because they are in different expressions

• Because they are already simplified

What is the simplified form of the expression in the second example?

• X - 8

• X + 7 over 7

• 7

• X + 7

In the final example, what is the simplified expression after multiplying?

• P + 6 over P - 2

• P - 2 over P + 6

• P - 4 over P + 6

• P + 6 times P - 4