Multiplying and Dividing Rational Algebraic Expressions

Give the domain of     $\frac{y+2}{y-2}$  

• all real numbers except   $-1$  

• all real numbers except  $1$  

• all real numbers except  $-2$  

• all real numbers except  $2$  

 $\frac{8-y}{z^2+5z}$  

Give the values for which the given rational expression is undefined?

•  $z=0\ \ \ \ and\ \ \ \ \ z=5$  

•  $z\ =0\ \ \ \ and\ \ \ \ z=-5$  

•  $z=0\ \ \ \ and\ \ \ \ z=-1$  

•  $z=0\ \ \ \ and\ \ \ \ z=1$  

 $\frac{4xy}{x^2+9x+18}$  

The domain of the rational algebraic expression above is:

• all real numbers except   $-3\ \ \ \ \ and\ \ \ \ \ -6$  

• all real numbers except   $3\ \ \ \ and\ \ \ \ \ 6$  

• all real numbers except  $9\ \ \ \ and\ \ \ \ 2$  

• all real numbers except   $-9\ \ \ \ and\ \ \ -2$  

Multiply the given rational expression and state the excluded values.

• $\frac{4\left(x+3\right)}{x+2},\ x\ne-1$

• $\frac{x+2}{4\left(x+1\right)},\ x\ne-3$

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

• $\frac{4\left(x+1\right)}{x+2},\ x\ne-3$

Divide

• A
• B
• C
• D

Divide the Rational Expression

• A

• B

• C

• D