3w^3-21w^2=54w

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Solution for 3w^3-21w^2=54w equation:


Simplifying
3w3 + -21w2 = 54w

Reorder the terms:
-21w2 + 3w3 = 54w

Solving
-21w2 + 3w3 = 54w

Solving for variable 'w'.

Reorder the terms:
-54w + -21w2 + 3w3 = 54w + -54w

Combine like terms: 54w + -54w = 0
-54w + -21w2 + 3w3 = 0

Factor out the Greatest Common Factor (GCF), '3w'.
3w(-18 + -7w + w2) = 0

Factor a trinomial.
3w((-2 + -1w)(9 + -1w)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

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

Subproblem 3

Set the factor '(9 + -1w)' equal to zero and attempt to solve: Simplifying 9 + -1w = 0 Solving 9 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1w = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1w = 0 + -9 -1w = 0 + -9 Combine like terms: 0 + -9 = -9 -1w = -9 Divide each side by '-1'. w = 9 Simplifying w = 9

Solution

w = {0, -2, 9}

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