(2w+4)(w)=1680

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Solution for (2w+4)(w)=1680 equation:


Simplifying
(2w + 4)(w) = 1680

Reorder the terms:
(4 + 2w)(w) = 1680

Reorder the terms for easier multiplication:
w(4 + 2w) = 1680
(4 * w + 2w * w) = 1680
(4w + 2w2) = 1680

Solving
4w + 2w2 = 1680

Solving for variable 'w'.

Reorder the terms:
-1680 + 4w + 2w2 = 1680 + -1680

Combine like terms: 1680 + -1680 = 0
-1680 + 4w + 2w2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-840 + 2w + w2) = 0

Factor a trinomial.
2((-30 + -1w)(28 + -1w)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-30 + -1w)' equal to zero and attempt to solve: Simplifying -30 + -1w = 0 Solving -30 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + -1w = 0 + 30 Combine like terms: -30 + 30 = 0 0 + -1w = 0 + 30 -1w = 0 + 30 Combine like terms: 0 + 30 = 30 -1w = 30 Divide each side by '-1'. w = -30 Simplifying w = -30

Subproblem 2

Set the factor '(28 + -1w)' equal to zero and attempt to solve: Simplifying 28 + -1w = 0 Solving 28 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + -1w = 0 + -28 Combine like terms: 28 + -28 = 0 0 + -1w = 0 + -28 -1w = 0 + -28 Combine like terms: 0 + -28 = -28 -1w = -28 Divide each side by '-1'. w = 28 Simplifying w = 28

Solution

w = {-30, 28}

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