Question

How do you solve `(x-3)^2-18=0`?

Answer 1

`x = +7.243 or x = -1.243`

Explanation:

As the equation in given there is no `x` term.

Find the square root of both sides:

`(x-3)^2 -18=0`

`(x-3)^2 = 18`

`x-3 =+-sqrt18`

`x = +sqrt18+3 = +7.243`
`x= -sqrt18+3=-1.243`