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Simplifying
5x2 + 6 = 86
Reorder the terms:
6 + 5x2 = 86
Solving
6 + 5x2 = 86
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6' to each side of the equation.
6 + -6 + 5x2 = 86 + -6
Combine like terms: 6 + -6 = 0
0 + 5x2 = 86 + -6
5x2 = 86 + -6
Combine like terms: 86 + -6 = 80
5x2 = 80
Divide each side by '5'.
x2 = 16
Simplifying
x2 = 16
Take the square root of each side:
x = {-4, 4}
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