# How do you write y=(x+7)(2x+3) in standard form?

May 29, 2018

FOIL it.

#### Explanation:

You multiply $x$ with $2 x$, $x$ with $3 x$, $7$ with $2 x$, and $7$ with $3$. You will get

$2 {x}^{2} + 3 x + 14 x + 21$

You will have to simplify it into

$2 {x}^{2} + 17 x + 21$