12x^3+16x^9-20x^2+28=0

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Solution for 12x^3+16x^9-20x^2+28=0 equation: 


Simplifying
12x3 + 16x9 + -20x2 + 28 = 0

Reorder the terms:
28 + -20x2 + 12x3 + 16x9 = 0

Solving
28 + -20x2 + 12x3 + 16x9 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(7 + -5x2 + 3x3 + 4x9) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(7 + -5x2 + 3x3 + 4x9)' equal to zero and attempt to solve:

Simplifying
7 + -5x2 + 3x3 + 4x9 = 0

Solving
7 + -5x2 + 3x3 + 4x9 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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