X^3+4X^2-21=0

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Solution for X^3+4X^2-21=0 equation: 


Simplifying
X3 + 4X2 + -21 = 0

Reorder the terms:
-21 + 4X2 + X3 = 0

Solving
-21 + 4X2 + X3 = 0

Solving for variable 'X'.

The solution to this equation could not be determined.

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