-7w^2-21w=0

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Solution for -7w^2-21w=0 equation:


Simplifying
-7w2 + -21w = 0

Reorder the terms:
-21w + -7w2 = 0

Solving
-21w + -7w2 = 0

Solving for variable 'w'.

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

Ignore the factor -7.

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 '(3 + w)' equal to zero and attempt to solve: Simplifying 3 + w = 0 Solving 3 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = 0 + -3 Combine like terms: 3 + -3 = 0 0 + w = 0 + -3 w = 0 + -3 Combine like terms: 0 + -3 = -3 w = -3 Simplifying w = -3

Solution

w = {0, -3}

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