a^3-4a+21=0

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


Simplifying
a3 + -4a + 21 = 0

Reorder the terms:
21 + -4a + a3 = 0

Solving
21 + -4a + a3 = 0

Solving for variable 'a'.

The solution to this equation could not be determined.

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