3x^2-1=2

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Solution for 3x^2-1=2 equation: 


Simplifying
3x2 + -1 = 2

Reorder the terms:
-1 + 3x2 = 2

Solving
-1 + 3x2 = 2

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 3x2 = 2 + 1

Combine like terms: -1 + 1 = 0
0 + 3x2 = 2 + 1
3x2 = 2 + 1

Combine like terms: 2 + 1 = 3
3x2 = 3

Divide each side by '3'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}

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