# What are the excluded values for the rational expression (x^2+11x+28)/(x+4)?

Jul 19, 2017

See a solution process below:

#### Explanation:

Because we cannot divide by $0$ then:

$x + 4 \ne 0$

Or

$x + 4 - \textcolor{red}{4} \ne 0 - \textcolor{red}{4}$

$x + 0 \ne - 4$

$x \ne - 4$

The excluded value is: $x = - 4$