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Simplifying
3x2 + 2 = 86
Reorder the terms:
2 + 3x2 = 86
Solving
2 + 3x2 = 86
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2' to each side of the equation.
2 + -2 + 3x2 = 86 + -2
Combine like terms: 2 + -2 = 0
0 + 3x2 = 86 + -2
3x2 = 86 + -2
Combine like terms: 86 + -2 = 84
3x2 = 84
Divide each side by '3'.
x2 = 28
Simplifying
x2 = 28
Take the square root of each side:
x = {-5.291502622, 5.291502622}
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