12x^2+8=400

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Solution for 12x^2+8=400 equation: 


Simplifying
12x2 + 8 = 400

Reorder the terms:
8 + 12x2 = 400

Solving
8 + 12x2 = 400

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 12x2 = 400 + -8

Combine like terms: 8 + -8 = 0
0 + 12x2 = 400 + -8
12x2 = 400 + -8

Combine like terms: 400 + -8 = 392
12x2 = 392

Divide each side by '12'.
x2 = 32.66666667

Simplifying
x2 = 32.66666667

Take the square root of each side:
x = {-5.715476067, 5.715476067}

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