N^2+18-72=0

Solution for N^2+18-72=0 equation:

Simplifying
N2 + 18 + -72 = 0

Reorder the terms:
18 + -72 + N2 = 0

Combine like terms: 18 + -72 = -54
-54 + N2 = 0

Solving
-54 + N2 = 0

Solving for variable 'N'.

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

Add '54' to each side of the equation.
-54 + 54 + N2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + N2 = 0 + 54
N2 = 0 + 54

Combine like terms: 0 + 54 = 54
N2 = 54

Simplifying
N2 = 54

Take the square root of each side:
N = {-7.348469228, 7.348469228}