# How do you simplify x (7+x)?

Jul 7, 2015

=color(blue)(x^2 +7x

#### Explanation:

$\textcolor{b l u e}{x} \left(7 + x\right)$
Here $\textcolor{b l u e}{x}$ needs to be multiplied with each of the terms within the brackets.

$= \textcolor{b l u e}{x} . \left(7\right) + \textcolor{b l u e}{x} . \left(x\right)$

$= 7 x + {x}^{2}$

=color(blue)(x^2 +7x