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

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Answer 1 · 2016-08-18T21:41:54

$X=12, or,-6$ .

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

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

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

$:. X=3+-9$ .

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

These roots satisfy the given eqn.

How do you solve 4 (X - 3) ^2 = 3244 (X - 3) ^2 = 324?