2x^2-13+21=0

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Solution for 2x^2-13+21=0 equation:


Simplifying
2x2 + -13 + 21 = 0

Reorder the terms:
-13 + 21 + 2x2 = 0

Combine like terms: -13 + 21 = 8
8 + 2x2 = 0

Solving
8 + 2x2 = 0

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 2x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 2x2 = 0 + -8
2x2 = 0 + -8

Combine like terms: 0 + -8 = -8
2x2 = -8

Divide each side by '2'.
x2 = -4

Simplifying
x2 = -4

Reorder the terms:
4 + x2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + x2 = 0

The solution to this equation could not be determined.

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