3x^2+9=-81

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Solution for 3x^2+9=-81 equation:


Simplifying
3x2 + 9 = -81

Reorder the terms:
9 + 3x2 = -81

Solving
9 + 3x2 = -81

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 3x2 = -81 + -9

Combine like terms: 9 + -9 = 0
0 + 3x2 = -81 + -9
3x2 = -81 + -9

Combine like terms: -81 + -9 = -90
3x2 = -90

Divide each side by '3'.
x2 = -30

Simplifying
x2 = -30

Reorder the terms:
30 + x2 = -30 + 30

Combine like terms: -30 + 30 = 0
30 + x2 = 0

The solution to this equation could not be determined.

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