N^2-3=15

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Solution for N^2-3=15 equation: 


Simplifying
N2 + -3 = 15

Reorder the terms:
-3 + N2 = 15

Solving
-3 + N2 = 15

Solving for variable 'N'.

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

Add '3' to each side of the equation.
-3 + 3 + N2 = 15 + 3

Combine like terms: -3 + 3 = 0
0 + N2 = 15 + 3
N2 = 15 + 3

Combine like terms: 15 + 3 = 18
N2 = 18

Simplifying
N2 = 18

Take the square root of each side:
N = {-4.242640687, 4.242640687}

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