3d^5-21d^4+30d^3=0

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Solution for 3d^5-21d^4+30d^3=0 equation:


Simplifying
3d5 + -21d4 + 30d3 = 0

Reorder the terms:
30d3 + -21d4 + 3d5 = 0

Solving
30d3 + -21d4 + 3d5 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), '3d3'.
3d3(10 + -7d + d2) = 0

Factor a trinomial.
3d3((2 + -1d)(5 + -1d)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'd3' equal to zero and attempt to solve: Simplifying d3 = 0 Solving d3 = 0 Move all terms containing d to the left, all other terms to the right. Simplifying d3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(2 + -1d)' equal to zero and attempt to solve: Simplifying 2 + -1d = 0 Solving 2 + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1d = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1d = 0 + -2 -1d = 0 + -2 Combine like terms: 0 + -2 = -2 -1d = -2 Divide each side by '-1'. d = 2 Simplifying d = 2

Subproblem 3

Set the factor '(5 + -1d)' equal to zero and attempt to solve: Simplifying 5 + -1d = 0 Solving 5 + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1d = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1d = 0 + -5 -1d = 0 + -5 Combine like terms: 0 + -5 = -5 -1d = -5 Divide each side by '-1'. d = 5 Simplifying d = 5

Solution

d = {2, 5}

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