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Simplifying
3x2 + -4 = 140
Reorder the terms:
-4 + 3x2 = 140
Solving
-4 + 3x2 = 140
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4' to each side of the equation.
-4 + 4 + 3x2 = 140 + 4
Combine like terms: -4 + 4 = 0
0 + 3x2 = 140 + 4
3x2 = 140 + 4
Combine like terms: 140 + 4 = 144
3x2 = 144
Divide each side by '3'.
x2 = 48
Simplifying
x2 = 48
Take the square root of each side:
x = {-6.92820323, 6.92820323}
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