84=w^2+5w

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Solution for 84=w^2+5w equation:


Simplifying
84 = w2 + 5w

Reorder the terms:
84 = 5w + w2

Solving
84 = 5w + w2

Solving for variable 'w'.

Reorder the terms:
84 + -5w + -1w2 = 5w + -5w + w2 + -1w2

Combine like terms: 5w + -5w = 0
84 + -5w + -1w2 = 0 + w2 + -1w2
84 + -5w + -1w2 = w2 + -1w2

Combine like terms: w2 + -1w2 = 0
84 + -5w + -1w2 = 0

Factor a trinomial.
(7 + -1w)(12 + w) = 0

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 '(12 + w)' equal to zero and attempt to solve: Simplifying 12 + w = 0 Solving 12 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + w = 0 + -12 Combine like terms: 12 + -12 = 0 0 + w = 0 + -12 w = 0 + -12 Combine like terms: 0 + -12 = -12 w = -12 Simplifying w = -12

Solution

w = {7, -12}

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