Question

How do you factor `p^2-22p+121`?

Answer 1

(p-11) (p-11)
p = 11

Explanation:

`p^2 - 22p + 121 = 0`
`p^2 - 11p - 11p + 121 = 0`
`p(p-11) - 11(p-11) = 0`
`(p-11) (p-11) = 0`
`p-11 = 0`
`p=11`