=8*y^3+3*y^2-56*y-21

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Solution for =8*y^3+3*y^2-56*y-21 equation: 


Simplifying
0 = 8y3 + 3y2 + -56y + -21

Reorder the terms:
0 = -21 + -56y + 3y2 + 8y3

Solving
0 = -21 + -56y + 3y2 + 8y3

Solving for variable 'y'.

Combine like terms: 0 + 21 = 21
21 + 56y + -3y2 + -8y3 = -21 + -56y + 3y2 + 8y3 + 21 + 56y + -3y2 + -8y3

Reorder the terms:
21 + 56y + -3y2 + -8y3 = -21 + 21 + -56y + 56y + 3y2 + -3y2 + 8y3 + -8y3

Combine like terms: -21 + 21 = 0
21 + 56y + -3y2 + -8y3 = 0 + -56y + 56y + 3y2 + -3y2 + 8y3 + -8y3
21 + 56y + -3y2 + -8y3 = -56y + 56y + 3y2 + -3y2 + 8y3 + -8y3

Combine like terms: -56y + 56y = 0
21 + 56y + -3y2 + -8y3 = 0 + 3y2 + -3y2 + 8y3 + -8y3
21 + 56y + -3y2 + -8y3 = 3y2 + -3y2 + 8y3 + -8y3

Combine like terms: 3y2 + -3y2 = 0
21 + 56y + -3y2 + -8y3 = 0 + 8y3 + -8y3
21 + 56y + -3y2 + -8y3 = 8y3 + -8y3

Combine like terms: 8y3 + -8y3 = 0
21 + 56y + -3y2 + -8y3 = 0

The solution to this equation could not be determined.

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