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Simplifying
3x2 + 4 = 13
Reorder the terms:
4 + 3x2 = 13
Solving
4 + 3x2 = 13
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 = 13 + -4
Combine like terms: 4 + -4 = 0
0 + 3x2 = 13 + -4
3x2 = 13 + -4
Combine like terms: 13 + -4 = 9
3x2 = 9
Divide each side by '3'.
x2 = 3
Simplifying
x2 = 3
Take the square root of each side:
x = {-1.732050808, 1.732050808}
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