2w^2-2w=420

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Solution for 2w^2-2w=420 equation:


Simplifying
2w2 + -2w = 420

Reorder the terms:
-2w + 2w2 = 420

Solving
-2w + 2w2 = 420

Solving for variable 'w'.

Reorder the terms:
-420 + -2w + 2w2 = 420 + -420

Combine like terms: 420 + -420 = 0
-420 + -2w + 2w2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-210 + -1w + w2) = 0

Factor a trinomial.
2((-14 + -1w)(15 + -1w)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-14 + -1w)' equal to zero and attempt to solve: Simplifying -14 + -1w = 0 Solving -14 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1w = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1w = 0 + 14 -1w = 0 + 14 Combine like terms: 0 + 14 = 14 -1w = 14 Divide each side by '-1'. w = -14 Simplifying w = -14

Subproblem 2

Set the factor '(15 + -1w)' equal to zero and attempt to solve: Simplifying 15 + -1w = 0 Solving 15 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1w = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1w = 0 + -15 -1w = 0 + -15 Combine like terms: 0 + -15 = -15 -1w = -15 Divide each side by '-1'. w = 15 Simplifying w = 15

Solution

w = {-14, 15}

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