(w-9)(w+5)=0

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Solution for (w-9)(w+5)=0 equation:


Simplifying
(w + -9)(w + 5) = 0

Reorder the terms:
(-9 + w)(w + 5) = 0

Reorder the terms:
(-9 + w)(5 + w) = 0

Multiply (-9 + w) * (5 + w)
(-9(5 + w) + w(5 + w)) = 0
((5 * -9 + w * -9) + w(5 + w)) = 0
((-45 + -9w) + w(5 + w)) = 0
(-45 + -9w + (5 * w + w * w)) = 0
(-45 + -9w + (5w + w2)) = 0

Combine like terms: -9w + 5w = -4w
(-45 + -4w + w2) = 0

Solving
-45 + -4w + w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-5 + -1w)(9 + -1w) = 0

Subproblem 1

Set the factor '(-5 + -1w)' equal to zero and attempt to solve: Simplifying -5 + -1w = 0 Solving -5 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1w = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1w = 0 + 5 -1w = 0 + 5 Combine like terms: 0 + 5 = 5 -1w = 5 Divide each side by '-1'. w = -5 Simplifying w = -5

Subproblem 2

Set the factor '(9 + -1w)' equal to zero and attempt to solve: Simplifying 9 + -1w = 0 Solving 9 + -1w = 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 + -1w = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1w = 0 + -9 -1w = 0 + -9 Combine like terms: 0 + -9 = -9 -1w = -9 Divide each side by '-1'. w = 9 Simplifying w = 9

Solution

w = {-5, 9}

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