3x^2-16+21=0

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Solution for 3x^2-16+21=0 equation:


Simplifying
3x2 + -16 + 21 = 0

Reorder the terms:
-16 + 21 + 3x2 = 0

Combine like terms: -16 + 21 = 5
5 + 3x2 = 0

Solving
5 + 3x2 = 0

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 3x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 3x2 = 0 + -5
3x2 = 0 + -5

Combine like terms: 0 + -5 = -5
3x2 = -5

Divide each side by '3'.
x2 = -1.666666667

Simplifying
x2 = -1.666666667

Reorder the terms:
1.666666667 + x2 = -1.666666667 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
1.666666667 + x2 = 0.000000000

The solution to this equation could not be determined.

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