Question

How do you factor `n^2-10n+9`?

Answer 1

`(n-1)(n-9)`

Explanation:

`n^2-10n+9 = (n-1)(n-9)`

`n*n=n^2`
`n*-9=-9n`
`n*-1=-n`
`-9*-1=9`

When you combine those you get: `n^2-10n+9`