18=(7+w)(w)

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Solution for 18=(7+w)(w) equation:


Simplifying
18 = (7 + w)(w)

Reorder the terms for easier multiplication:
18 = w(7 + w)
18 = (7 * w + w * w)
18 = (7w + w2)

Solving
18 = 7w + w2

Solving for variable 'w'.

Reorder the terms:
18 + -7w + -1w2 = 7w + -7w + w2 + -1w2

Combine like terms: 7w + -7w = 0
18 + -7w + -1w2 = 0 + w2 + -1w2
18 + -7w + -1w2 = w2 + -1w2

Combine like terms: w2 + -1w2 = 0
18 + -7w + -1w2 = 0

Factor a trinomial.
(2 + -1w)(9 + w) = 0

Subproblem 1

Set the factor '(2 + -1w)' equal to zero and attempt to solve: Simplifying 2 + -1w = 0 Solving 2 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1w = 0 + -2 -1w = 0 + -2 Combine like terms: 0 + -2 = -2 -1w = -2 Divide each side by '-1'. w = 2 Simplifying w = 2

Subproblem 2

Set the factor '(9 + w)' equal to zero and attempt to solve: Simplifying 9 + w = 0 Solving 9 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + w = 0 + -9 Combine like terms: 9 + -9 = 0 0 + w = 0 + -9 w = 0 + -9 Combine like terms: 0 + -9 = -9 w = -9 Simplifying w = -9

Solution

w = {2, -9}

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