Rational Review

Tags

CCSS.HSA.APR.D.6

 $\frac{x^2+3x-18}{3x+18}\times\frac{x^2+x-90}{x^2+7x-30}$  

What is the first steps for this problem?

• Factor in order to identify the least common denominator

• Factor in order to reduce common factors

• Multiply the numerators and denominators

• Cancel the 3x and 18 in the first fraction and  $x^2$   in second fraction

Tags

CCSS.HSA.APR.D.6

Multiply and Simplify

Tags

CCSS.HSA.APR.D.7

Tags

CCSS.HSA.APR.D.7

• Multiply both fractions by 3(m+5) to cancel denominators

• Reduce the common factor of m

• Multiply the first fraction by m+5

Tags

CCSS.HSA.APR.D.7

Divide the Rational Expression

• A

• B

• C

• D

Tags

CCSS.HSA.APR.D.6

• x

Tags

CCSS.HSA.REI.A.2

Solve for x

• x = 10
• x = -30/13
• x = 6
• no solution

Tags

CCSS.HSA.REI.A.2

Which of the following equations would arise while trying to solve this equation?

• x-2+x(x-6)=4

• x-6+x(x-2)=4

• x-2+x(x-6)=4(x-6)(x-2)

• 1+x=4

Tags

CCSS.HSA.REI.A.2

What could x not be for this problem? (do not have to solve for x)

• 6 and 2

• 0

• 4 and 1

• anything is possible