Question

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

Answer 1

FOIL it.

Explanation:

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

`2x^2 +3x+14x+21`

You will have to simplify it into

`2x^2+17x+21`