Question

Help

Solve the equation by factoring

Answer 1

Move the six to the other side to yield:


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

Split up the middle term into factors of -18.

`n^(2) - 3n + 6n - 18 = 0`

Factorise.

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

Group like terms.

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

Thus, n = -6 and 3