3x^2-21+30=O

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Solution for 3x^2-21+30=O equation: 


Simplifying
3x2 + -21 + 30 = O

Reorder the terms:
-21 + 30 + 3x2 = O

Combine like terms: -21 + 30 = 9
9 + 3x2 = O

Solving
9 + 3x2 = O

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 = -9 + O

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

Divide each side by '3'.
x2 = -3 + 0.3333333333O

Simplifying
x2 = -3 + 0.3333333333O

Reorder the terms:
3 + -0.3333333333O + x2 = -3 + 0.3333333333O + 3 + -0.3333333333O

Reorder the terms:
3 + -0.3333333333O + x2 = -3 + 3 + 0.3333333333O + -0.3333333333O

Combine like terms: -3 + 3 = 0
3 + -0.3333333333O + x2 = 0 + 0.3333333333O + -0.3333333333O
3 + -0.3333333333O + x2 = 0.3333333333O + -0.3333333333O

Combine like terms: 0.3333333333O + -0.3333333333O = 0.0000000000
3 + -0.3333333333O + x2 = 0.0000000000

The solution to this equation could not be determined.

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