x(2x^2-1)=21

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Solution for x(2x^2-1)=21 equation: 


Simplifying
x(2x2 + -1) = 21

Reorder the terms:
x(-1 + 2x2) = 21
(-1 * x + 2x2 * x) = 21
(-1x + 2x3) = 21

Solving
-1x + 2x3 = 21

Solving for variable 'x'.

Reorder the terms:
-21 + -1x + 2x3 = 21 + -21

Combine like terms: 21 + -21 = 0
-21 + -1x + 2x3 = 0

The solution to this equation could not be determined.

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