28r^3+12r^2-21r-9=0

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Solution for 28r^3+12r^2-21r-9=0 equation: 


Simplifying
28r3 + 12r2 + -21r + -9 = 0

Reorder the terms:
-9 + -21r + 12r2 + 28r3 = 0

Solving
-9 + -21r + 12r2 + 28r3 = 0

Solving for variable 'r'.

The solution to this equation could not be determined.

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