Question

How do you solve `4 (X - 3) ^2 = 324`?

Answer 1

`X=12, or,-6`.

Explanation:

`4(X-3)^2=324`.

`:. (X-3)^2=324/4=81`.

`:. X-3=sqrt81=+-9`.

`:. X=3+-9`.

`:. X=3+9=12, or, X=3-9=-6`.

These roots satisfy the given eqn.