2n^2-4=2

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Solution for 2n^2-4=2 equation: 


Simplifying
2n2 + -4 = 2

Reorder the terms:
-4 + 2n2 = 2

Solving
-4 + 2n2 = 2

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 2n2 = 2 + 4

Combine like terms: -4 + 4 = 0
0 + 2n2 = 2 + 4
2n2 = 2 + 4

Combine like terms: 2 + 4 = 6
2n2 = 6

Divide each side by '2'.
n2 = 3

Simplifying
n2 = 3

Take the square root of each side:
n = {-1.732050808, 1.732050808}

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