(w)(2w+2)=84

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Solution for (w)(2w+2)=84 equation:


Simplifying
(w)(2w + 2) = 84

Reorder the terms:
w(2 + 2w) = 84
(2 * w + 2w * w) = 84
(2w + 2w2) = 84

Solving
2w + 2w2 = 84

Solving for variable 'w'.

Reorder the terms:
-84 + 2w + 2w2 = 84 + -84

Combine like terms: 84 + -84 = 0
-84 + 2w + 2w2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-42 + w + w2) = 0

Factor a trinomial.
2((-7 + -1w)(6 + -1w)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + -1w)' equal to zero and attempt to solve: Simplifying -7 + -1w = 0 Solving -7 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1w = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1w = 0 + 7 -1w = 0 + 7 Combine like terms: 0 + 7 = 7 -1w = 7 Divide each side by '-1'. w = -7 Simplifying w = -7

Subproblem 2

Set the factor '(6 + -1w)' equal to zero and attempt to solve: Simplifying 6 + -1w = 0 Solving 6 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1w = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1w = 0 + -6 -1w = 0 + -6 Combine like terms: 0 + -6 = -6 -1w = -6 Divide each side by '-1'. w = 6 Simplifying w = 6

Solution

w = {-7, 6}

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