5n^2+3=128

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Solution for 5n^2+3=128 equation: 


Simplifying
5n2 + 3 = 128

Reorder the terms:
3 + 5n2 = 128

Solving
3 + 5n2 = 128

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 + 5n2 = 128 + -3

Combine like terms: 3 + -3 = 0
0 + 5n2 = 128 + -3
5n2 = 128 + -3

Combine like terms: 128 + -3 = 125
5n2 = 125

Divide each side by '5'.
n2 = 25

Simplifying
n2 = 25

Take the square root of each side:
n = {-5, 5}

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