3j^3+21j^2+30j=0

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Solution for 3j^3+21j^2+30j=0 equation:


Simplifying
3j3 + 21j2 + 30j = 0

Reorder the terms:
30j + 21j2 + 3j3 = 0

Solving
30j + 21j2 + 3j3 = 0

Solving for variable 'j'.

Factor out the Greatest Common Factor (GCF), '3j'.
3j(10 + 7j + j2) = 0

Factor a trinomial.
3j((5 + j)(2 + j)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'j' equal to zero and attempt to solve: Simplifying j = 0 Solving j = 0 Move all terms containing j to the left, all other terms to the right. Simplifying j = 0

Subproblem 2

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

Subproblem 3

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

Solution

j = {0, -5, -2}

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