-5(w-9)(-w-1)=0

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Solution for -5(w-9)(-w-1)=0 equation:


Simplifying
-5(w + -9)(-1w + -1) = 0

Reorder the terms:
-5(-9 + w)(-1w + -1) = 0

Reorder the terms:
-5(-9 + w)(-1 + -1w) = 0

Multiply (-9 + w) * (-1 + -1w)
-5(-9(-1 + -1w) + w(-1 + -1w)) = 0
-5((-1 * -9 + -1w * -9) + w(-1 + -1w)) = 0
-5((9 + 9w) + w(-1 + -1w)) = 0
-5(9 + 9w + (-1 * w + -1w * w)) = 0
-5(9 + 9w + (-1w + -1w2)) = 0

Combine like terms: 9w + -1w = 8w
-5(9 + 8w + -1w2) = 0
(9 * -5 + 8w * -5 + -1w2 * -5) = 0
(-45 + -40w + 5w2) = 0

Solving
-45 + -40w + 5w2 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-9 + -8w + w2) = 0

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

Ignore the factor 5.

Subproblem 1

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

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 = {-1, 9}

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