8.3 WK2 Multiplying Rational Expressions

Simplify the following expressions: $\frac{5ab^3}{8c^2}\times\frac{16c^3}{15a^2b}$  

•  $\frac{21b^2c}{23a}$  

•  $\frac{2b^4c^5}{3a^3}$  

•  $\frac{21ab^3c^3}{23a^2bc^2}$  

•  $\frac{2b^2c}{3a}$  

Tags

CCSS.HSA.APR.D.7

Simplify the rational expression: $\frac{x^2-3x-4}{\left(x+1\right)\left(x-2\right)}\times\frac{\left(x+2\right)\left(x-2\right)}{x^2+x-20}$   *Don't forget to factor, x-puzzle 

•  $\frac{x-2}{x+1}$  

•  $\frac{x+2}{x+5}$  

•  $\frac{x-2}{x+5}$  

•  $\frac{x+2}{x+1}$  

Tags

CCSS.HSA.APR.D.7

 $\frac{x+3}{x-5}\times\frac{x-5}{x+1}$  

What is the restriction of the following expression, click all that may apply. 

• 3

• -3

• 5

• -5

• -1

Tags

CCSS.HSA.APR.D.7

 Simplify the rational expression: $\frac{2xy^2}{3z^3}\times\frac{3x^2z}{2x^4y^2}$  

•  $\frac{1}{xz^2}$  

•  $\frac{5xy}{x^2z}$  

•  $\frac{x^3y^2z}{x^4y^2z^3}$  

•  $\frac{6}{xz^2}$  

Tags

CCSS.HSA.APR.D.7

Simplify the rational expressions: $\frac{\left(x-4\right)\left(x+3\right)}{x^2-5x}\times\frac{x^2-25}{\left(x+3\right)}$  

*Factor first use GFC and difference of squares

•  $\frac{\left(x+4\right)\left(x-5\right)}{x^2-5x}$  

•  $\frac{\left(x-4\right)\left(x+5\right)}{x}$  

•  $\frac{\left(x-4\right)\left(x-5\right)}{x}$  

•  $\frac{\left(x-4\right)\left(x+5\right)}{x^2-5x}$  

Tags

CCSS.HSA.APR.D.7

What are the restrictions in question #5?
*Select all that may apply

 $\frac{\left(x-4\right)\left(x+3\right)}{x^2-5x}\times\frac{x^2-25}{\left(x+3\right)}$  

• 5

• 3

• -3

• -5

• 0

Tags

CCSS.HSA.APR.D.7