Question

Solve he equation using square roots 3x^2-27=0

Answer 1

Add -27 to both sides of the equation
3x^2=27.

Divide each term by 3 and simply.

Take the square root of both sides of the equation to eliminate the exponent on the left side.


To complete solution is the result of both the positive and negative portions of the solution.

Answer 2

$3x^2-27=0\\\\3x^2=27\qquad|:3\\\\x^2=9\qquad|\sqrt{(\ldots)}\\\\\\\boxed{x=3\qquad\vee\qquad x=-3}$