0=y^4-6y^3+15y^2-18y-9

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Solution for 0=y^4-6y^3+15y^2-18y-9 equation:


Simplifying
0 = y4 + -6y3 + 15y2 + -18y + -9

Reorder the terms:
0 = -9 + -18y + 15y2 + -6y3 + y4

Solving
0 = -9 + -18y + 15y2 + -6y3 + y4

Solving for variable 'y'.

Combine like terms: 0 + 9 = 9
9 + 18y + -15y2 + 6y3 + -1y4 = -9 + -18y + 15y2 + -6y3 + y4 + 9 + 18y + -15y2 + 6y3 + -1y4

Reorder the terms:
9 + 18y + -15y2 + 6y3 + -1y4 = -9 + 9 + -18y + 18y + 15y2 + -15y2 + -6y3 + 6y3 + y4 + -1y4

Combine like terms: -9 + 9 = 0
9 + 18y + -15y2 + 6y3 + -1y4 = 0 + -18y + 18y + 15y2 + -15y2 + -6y3 + 6y3 + y4 + -1y4
9 + 18y + -15y2 + 6y3 + -1y4 = -18y + 18y + 15y2 + -15y2 + -6y3 + 6y3 + y4 + -1y4

Combine like terms: -18y + 18y = 0
9 + 18y + -15y2 + 6y3 + -1y4 = 0 + 15y2 + -15y2 + -6y3 + 6y3 + y4 + -1y4
9 + 18y + -15y2 + 6y3 + -1y4 = 15y2 + -15y2 + -6y3 + 6y3 + y4 + -1y4

Combine like terms: 15y2 + -15y2 = 0
9 + 18y + -15y2 + 6y3 + -1y4 = 0 + -6y3 + 6y3 + y4 + -1y4
9 + 18y + -15y2 + 6y3 + -1y4 = -6y3 + 6y3 + y4 + -1y4

Combine like terms: -6y3 + 6y3 = 0
9 + 18y + -15y2 + 6y3 + -1y4 = 0 + y4 + -1y4
9 + 18y + -15y2 + 6y3 + -1y4 = y4 + -1y4

Combine like terms: y4 + -1y4 = 0
9 + 18y + -15y2 + 6y3 + -1y4 = 0

The solution to this equation could not be determined.

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