Rational Expression Review

Simplify 

• A.(x+7)/(x-4)
• B.-3/4
• C.(x+3)/(x+4)
• D.(x+3)/(x-4)

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Simplify

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

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Multiply and Simplify

• (n-10)/8n+56
• (n-10)(n+7)/8n+56
• (n-10)/8
• (n+10)/8

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

Divide and Simplify

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

When adding and subtracting rational expressions, my first step should be to:

• Combine like terms in the numerators.
• Determine a Least Common Denominator.
• Factor all of the numerators and all of the denominators.
• Change the operator to multiplication and reciprocate the second fraction.

Tags

CCSS.HSA.APR.D.7

My first step will be to change the operator to multiplication and reciprocate the second fraction when...

• Adding
• Subtracting
• Multiplying
• Dividing

Tags

CCSS.HSA.APR.D.7

To simplify a rational expression, I should

• Eliminate common terms in the numerator and denominator.
• Combine like terms in the numerator and denominator.
• Factor the numerator and denominator and eliminate common factors.
• Find an LCD.

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.SSE.A.2

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Dividing rational expressions -

• to add two rational expressions, make sure the denominators are the same

• to divide two rational expressions, multiply by the reciprocal of the division

• an equation that contains rational expressions

Tags

CCSS.HSA.APR.D.7