(2d+4)(5d+5)(d-4)=0

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Solution for (2d+4)(5d+5)(d-4)=0 equation: 


Simplifying
(2d + 4)(5d + 5)(d + -4) = 0

Reorder the terms:
(4 + 2d)(5d + 5)(d + -4) = 0

Reorder the terms:
(4 + 2d)(5 + 5d)(d + -4) = 0

Reorder the terms:
(4 + 2d)(5 + 5d)(-4 + d) = 0

Multiply (4 + 2d) * (5 + 5d)
(4(5 + 5d) + 2d * (5 + 5d))(-4 + d) = 0
((5 * 4 + 5d * 4) + 2d * (5 + 5d))(-4 + d) = 0
((20 + 20d) + 2d * (5 + 5d))(-4 + d) = 0
(20 + 20d + (5 * 2d + 5d * 2d))(-4 + d) = 0
(20 + 20d + (10d + 10d2))(-4 + d) = 0

Combine like terms: 20d + 10d = 30d
(20 + 30d + 10d2)(-4 + d) = 0

Multiply (20 + 30d + 10d2) * (-4 + d)
(20(-4 + d) + 30d * (-4 + d) + 10d2 * (-4 + d)) = 0
((-4 * 20 + d * 20) + 30d * (-4 + d) + 10d2 * (-4 + d)) = 0
((-80 + 20d) + 30d * (-4 + d) + 10d2 * (-4 + d)) = 0
(-80 + 20d + (-4 * 30d + d * 30d) + 10d2 * (-4 + d)) = 0
(-80 + 20d + (-120d + 30d2) + 10d2 * (-4 + d)) = 0
(-80 + 20d + -120d + 30d2 + (-4 * 10d2 + d * 10d2)) = 0
(-80 + 20d + -120d + 30d2 + (-40d2 + 10d3)) = 0

Combine like terms: 20d + -120d = -100d
(-80 + -100d + 30d2 + -40d2 + 10d3) = 0

Combine like terms: 30d2 + -40d2 = -10d2
(-80 + -100d + -10d2 + 10d3) = 0

Solving
-80 + -100d + -10d2 + 10d3 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), '10'.
10(-8 + -10d + -1d2 + d3) = 0

Ignore the factor 10.

Subproblem 1
Set the factor '(-8 + -10d + -1d2 + d3)' equal to zero and attempt to solve:

Simplifying
-8 + -10d + -1d2 + d3 = 0

Solving
-8 + -10d + -1d2 + d3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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