Question

How do you solve `n^2 + 3n - 12 = 6`?

Answer 1

`n=-6,3`

Explanation:

Given: `n^2+3n-12=6`.

Subtract `6` from both sides.

`n^2+3n-12-6=color(red)cancelcolor(black)6-color(red)cancelcolor(black)6`

`n^2+3n-18=0`

`=>(n+6)(n-3)=0`

`:.n=-6,3`