Rational Expressions

Rational Expressions

Factor and cancel out common factors in the numerator and the denominator.

Multiple Choice

Simplify.

• 1/(n-7)
• n-7
• (n-6)/(n-7)
• n-6

Multiple Choice

Simplify. 

• (m+6)/(m-3)
• 7/(m-3)
• 7(m+6)
• (m-3)

To find excluded values, set denominator equal to zero and solve for variable.

Multiple Choice

Simplify and state the excluded values.

• A
• B
• C
• D

Multiple Choice

Simplify and state the excluded values.

• A
• B
• C
• D

Multiple Choice

Simplify and state the excluded values.

• A
• B
• C
• D

Multiple Choice

Simplify

• (x-9)/(x+9)
• 1/(x-9)
• (x+9)
• 1/(x+9)