CPM Homework Help : A2C Problem 13-48

Solve each equation. Check for extraneous solutions.

$\sqrt { x + 7 } = x + 1$
Hint (a):
Square both sides, simplify and factor. Check your answers.
Answer (a):
$x = 2$

$\frac { 2 } { x + 3 } - \frac { 1 } { x } = \frac { - 6 } { x ^ { 2 } + 3 x }$
Hint (b):
Multiply both sides by $x\left(x + 3\right)$ . This removes the denominators.