91Ó°ÊÓ

In the following exercises, solve.

$$\begin{gathered} \left(a\right)\sqrt{u}+1=\sqrt{u+4} \\ \left(b\right)\sqrt{n-5}+4=\sqrt{3n+7} \end{gathered}$$

In the following exercises, solve.

$$\begin{gathered} \left(a\right)\sqrt{x}+10=\sqrt{x+2} \\ \left(b\right)\sqrt{y-2}+2=\sqrt{2y+4} \end{gathered}$$

In the following exercises, solve.

$\sqrt{2y+4}+6=0$

In the following exercises, solve.

$\sqrt{8u+1}+9=0$

In the following exercises, solve.

$\sqrt{a}+1=\sqrt{a+5}$

In the following exercises, solve.

$\sqrt{d}-2=\sqrt{d-20}$

In the following exercises, solve.

$\sqrt{6s+4}=\sqrt{8s-28}$

In the following exercises, solve.

$\sqrt{9p+9}=\sqrt{10p-6}$

In the following exercises, simplify.

$\sqrt{144x^2{y}^2}$

In the following exercises, solve. Round approximations to one decimal place.

Landscaping Reed wants to

have a square garden plot in his

backyard. He has enough

compost to cover an area of 75

square feet. Use the formula $s=\sqrt{A}$

to find the length of each

side of his garden. Round your

answer to the nearest tenth of a

foot.