=(d-1)(d+2)(d-3)

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Solution for =(d-1)(d+2)(d-3) equation: 


Simplifying
0 = (d + -1)(d + 2)(d + -3)

Reorder the terms:
0 = (-1 + d)(d + 2)(d + -3)

Reorder the terms:
0 = (-1 + d)(2 + d)(d + -3)

Reorder the terms:
0 = (-1 + d)(2 + d)(-3 + d)

Multiply (-1 + d) * (2 + d)
0 = (-1(2 + d) + d(2 + d))(-3 + d)
0 = ((2 * -1 + d * -1) + d(2 + d))(-3 + d)
0 = ((-2 + -1d) + d(2 + d))(-3 + d)
0 = (-2 + -1d + (2 * d + d * d))(-3 + d)
0 = (-2 + -1d + (2d + d2))(-3 + d)

Combine like terms: -1d + 2d = 1d
0 = (-2 + 1d + d2)(-3 + d)

Multiply (-2 + 1d + d2) * (-3 + d)
0 = (-2(-3 + d) + 1d * (-3 + d) + d2(-3 + d))
0 = ((-3 * -2 + d * -2) + 1d * (-3 + d) + d2(-3 + d))
0 = ((6 + -2d) + 1d * (-3 + d) + d2(-3 + d))
0 = (6 + -2d + (-3 * 1d + d * 1d) + d2(-3 + d))
0 = (6 + -2d + (-3d + 1d2) + d2(-3 + d))
0 = (6 + -2d + -3d + 1d2 + (-3 * d2 + d * d2))
0 = (6 + -2d + -3d + 1d2 + (-3d2 + d3))

Combine like terms: -2d + -3d = -5d
0 = (6 + -5d + 1d2 + -3d2 + d3)

Combine like terms: 1d2 + -3d2 = -2d2
0 = (6 + -5d + -2d2 + d3)

Solving
0 = 6 + -5d + -2d2 + d3

Solving for variable 'd'.

Combine like terms: 0 + -6 = -6
-6 + 5d + 2d2 + -1d3 = 6 + -5d + -2d2 + d3 + -6 + 5d + 2d2 + -1d3

Reorder the terms:
-6 + 5d + 2d2 + -1d3 = 6 + -6 + -5d + 5d + -2d2 + 2d2 + d3 + -1d3

Combine like terms: 6 + -6 = 0
-6 + 5d + 2d2 + -1d3 = 0 + -5d + 5d + -2d2 + 2d2 + d3 + -1d3
-6 + 5d + 2d2 + -1d3 = -5d + 5d + -2d2 + 2d2 + d3 + -1d3

Combine like terms: -5d + 5d = 0
-6 + 5d + 2d2 + -1d3 = 0 + -2d2 + 2d2 + d3 + -1d3
-6 + 5d + 2d2 + -1d3 = -2d2 + 2d2 + d3 + -1d3

Combine like terms: -2d2 + 2d2 = 0
-6 + 5d + 2d2 + -1d3 = 0 + d3 + -1d3
-6 + 5d + 2d2 + -1d3 = d3 + -1d3

Combine like terms: d3 + -1d3 = 0
-6 + 5d + 2d2 + -1d3 = 0

The solution to this equation could not be determined.

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