(3x^2)=15

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Solution for (3x^2)=15 equation: 


Simplifying
(3x2) = 15

Solving
(3x2) = 15

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '3'.
x2 = 5

Simplifying
x2 = 5

Take the square root of each side:
x = {-2.236067978, 2.236067978}

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