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Simplifying
x2 = 3x2 + -16
Reorder the terms:
x2 = -16 + 3x2
Solving
x2 = -16 + 3x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x2' to each side of the equation.
x2 + -3x2 = -16 + 3x2 + -3x2
Combine like terms: x2 + -3x2 = -2x2
-2x2 = -16 + 3x2 + -3x2
Combine like terms: 3x2 + -3x2 = 0
-2x2 = -16 + 0
-2x2 = -16
Divide each side by '-2'.
x2 = 8
Simplifying
x2 = 8
Take the square root of each side:
x = {-2.828427125, 2.828427125}
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