Dividing Polynomials

Simplify the expression
 $\frac{\left(x-3\right)\left(x+1\right)\left(x+7\right)}{\left(x-7\right)\left(x-3\right)\left(x+2\right)}$  

•  $\frac{\left(x+1\right)}{\left(x+2\right)}$  

•  $\frac{\left(x+1\right)\left(x+7\right)}{\left(x-7\right)\left(x+2\right)}$  

•  $\frac{\left(x+1\right)}{\left(x-2\right)}$  

•  $\frac{\left(x+1\right)\left(x-3\right)}{\left(x-3\right)\left(x+2\right)}$  

Simplify the expression completely:
 $\frac{64\left(x-5\right)\left(x+4\right)\left(x+1\right)}{160\left(x+4\right)\left(x-5\right)}$  

•  $\frac{5}{2\left(x+2\right)}$  

•  $\frac{2}{5\left(x+1\right)}$  

•  $\frac{5\left(x+1\right)}{2}$  

•  $\frac{2\left(x+1\right)}{5}$  

Simplify the rational expression
 $\frac{144\left(x-4\right)\left(x+5\right)}{84\left(x+5\right)\left(x+2\right)}$  

•  $\frac{12\left(x-4\right)}{7\left(x+2\right)}$  

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

•  $\frac{3\left(x-4\right)}{2\left(x+2\right)}$  

•  $\frac{7\left(x-4\right)}{6\left(x+2\right)}$  

Which expression is equivalent to  $\frac{10x^2\left(x+5\right)}{40x\left(x+5\right)}$  

•  $\frac{1}{4x}$   $4x$  

•  $\frac{x}{4}$  

•  $\frac{4}{x}$  

Which expression is equivalent to 

 $\frac{x^2\left(x-10\right)\left(x-4\right)\left(x+5\right)}{x^3\left(x-4\right)\left(x+2\right)\left(x+5\right)}$  ?

•  $\frac{x\left(x-10\right)}{\left(x+2\right)}$  

•  $\frac{x^5\left(x-10\right)}{\left(x+2\right)}$  

•  $\frac{\left(x-10\right)}{x\left(x+2\right)}$  

•  $\frac{\left(x-10\right)}{x^5\left(x+2\right)}$  

Simplify the expression
 $\frac{x\left(x-5\right)\left(x+2\right)}{x^2\left(x-5\right)\left(x+2\right)}$ 

• 1

•  $\frac{1}{x}$  

• x

•  $\frac{1}{x^3}$  

Simplify the rational expression
 $\frac{50\left(x-6\right)\left(x+7\right)}{10\left(x+7\right)}$  

•  $\frac{5}{\left(x-6\right)}$  

•  $\frac{\left(x-6\right)}{5}$  

•  $\frac{1}{5\left(x-6\right)}$  

•  $5\left(x-6\right)$