Question

How do you solve using the completing the square method `x^2 - 4x =12`?

Answer 1

`y=(x-2)^2-16`

Explanation:

First set the equation equal to 0

`x^2-4x-12=0`

Now complete the square

`[x^2-4x]-12`
`[(x-2)^2-4]-12`
`(x-2)^2-4-12`
`(x-2)^2-16`