w^3-7w^2=8w

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Solution for w^3-7w^2=8w equation:


Simplifying
w3 + -7w2 = 8w

Reorder the terms:
-7w2 + w3 = 8w

Solving
-7w2 + w3 = 8w

Solving for variable 'w'.

Reorder the terms:
-8w + -7w2 + w3 = 8w + -8w

Combine like terms: 8w + -8w = 0
-8w + -7w2 + w3 = 0

Factor out the Greatest Common Factor (GCF), 'w'.
w(-8 + -7w + w2) = 0

Factor a trinomial.
w((-1 + -1w)(8 + -1w)) = 0

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

Subproblem 3

Set the factor '(8 + -1w)' equal to zero and attempt to solve: Simplifying 8 + -1w = 0 Solving 8 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1w = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1w = 0 + -8 -1w = 0 + -8 Combine like terms: 0 + -8 = -8 -1w = -8 Divide each side by '-1'. w = 8 Simplifying w = 8

Solution

w = {0, -1, 8}

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