2n^2+6=128

Solution for 2n^2+6=128 equation:

Simplifying
2n2 + 6 = 128

Reorder the terms:
6 + 2n2 = 128

Solving
6 + 2n2 = 128

Solving for variable 'n'.

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

Add '-6' to each side of the equation.
6 + -6 + 2n2 = 128 + -6

Combine like terms: 6 + -6 = 0
0 + 2n2 = 128 + -6
2n2 = 128 + -6

Combine like terms: 128 + -6 = 122
2n2 = 122

Divide each side by '2'.
n2 = 61

Simplifying
n2 = 61

Take the square root of each side:
n = {-7.810249676, 7.810249676}