Answer
$\frac{x}{x+2}$; domain excludes $-2$
Work Step by Step
Pull out the GCF of the numerator. Then use trial and error to factor the denominator, and divide.
The domain includes all real numbers except for $-2$ because it makes the original expression undefined.
$\frac{x^2+2x}{x^2+4x+4}$
$\frac{x(x+2)}{(x+2)^2}$
$\frac{x}{x+2}$
