Question

How do you write `7x^2+55x+42` in factored form?

Answer 1

`=(x+7)(7x+6)`

Explanation:

`7x^2+55x+42`
`=7x^2+6x+49x+42`
`=x(7x+6)+7(7x+6)`
`=(x+7)(7x+6)`