-3x^2+9=13

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Solution for -3x^2+9=13 equation:


Simplifying
-3x2 + 9 = 13

Reorder the terms:
9 + -3x2 = 13

Solving
9 + -3x2 = 13

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 = 13 + -9

Combine like terms: 9 + -9 = 0
0 + -3x2 = 13 + -9
-3x2 = 13 + -9

Combine like terms: 13 + -9 = 4
-3x2 = 4

Divide each side by '-3'.
x2 = -1.333333333

Simplifying
x2 = -1.333333333

Reorder the terms:
1.333333333 + x2 = -1.333333333 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
1.333333333 + x2 = 0.000000000

The solution to this equation could not be determined.

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