91Ó°ÊÓ

Simplify: $\frac{3w}{w+2}+\frac{2}{w+7}-\frac{17w+4}{w^2+9w+14}$

Simplify:$\frac{\frac{2}{x^2-1}}{\frac{3}{x+1}}$

In the following exercises, evaluate the rational expression for the given values.

$$\begin{gathered} \frac{y^2+5y+6}{y^2-1} \\ \left(a\right)y=0 \\ \left(b\right)y=2 \\ \left(c\right)y=-2 \end{gathered}$$

In the following exercises, multiply.

$\frac{18c-2c^2}{6c+30}·\frac{c^2+7c+10}{c^2-81}$

In the following exercises, multiply.

$\frac{35d-7d^2}{d^2+7d}·\frac{d^2+12d+35}{d^2-25}$

In the following exercises, multiply.

$\frac{72m-12m^2}{8m+32}·\frac{m^2+10m+24}{m^2-36}$

In the following exercises, multiply.

$\frac{4n+20}{n^2+n-20}·\frac{n^2-16}{4n+16}$

In the following exercises, multiply.

$\frac{6p^2-6p}{p^2+7p-18}·\frac{p^2-81}{3p^2-27p}$

In the following exercises, multiply.

$\frac{q^2-2q}{q^2+6q-16}·\frac{q^2-64}{q^2-8q}$

In the following exercises, multiply.

$\frac{2r^2-2r}{r^2+4r-5}·\frac{r^2-25}{2r^2-10r}$