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Simplifying
4 + 3x2 = 15
Solving
4 + 3x2 = 15
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 = 15 + -4
Combine like terms: 4 + -4 = 0
0 + 3x2 = 15 + -4
3x2 = 15 + -4
Combine like terms: 15 + -4 = 11
3x2 = 11
Divide each side by '3'.
x2 = 3.666666667
Simplifying
x2 = 3.666666667
Take the square root of each side:
x = {-1.914854216, 1.914854216}
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