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

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Solution for (8-w)(5w+9)=0 equation:


Simplifying
(8 + -1w)(5w + 9) = 0

Reorder the terms:
(8 + -1w)(9 + 5w) = 0

Multiply (8 + -1w) * (9 + 5w)
(8(9 + 5w) + -1w * (9 + 5w)) = 0
((9 * 8 + 5w * 8) + -1w * (9 + 5w)) = 0
((72 + 40w) + -1w * (9 + 5w)) = 0
(72 + 40w + (9 * -1w + 5w * -1w)) = 0
(72 + 40w + (-9w + -5w2)) = 0

Combine like terms: 40w + -9w = 31w
(72 + 31w + -5w2) = 0

Solving
72 + 31w + -5w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(8 + -1w)(9 + 5w) = 0

Subproblem 1

Set the factor '(8 + -1w)' equal to zero and attempt to solve: Simplifying 8 + -1w = 0 Solving 8 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1w = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1w = 0 + -8 -1w = 0 + -8 Combine like terms: 0 + -8 = -8 -1w = -8 Divide each side by '-1'. w = 8 Simplifying w = 8

Subproblem 2

Set the factor '(9 + 5w)' equal to zero and attempt to solve: Simplifying 9 + 5w = 0 Solving 9 + 5w = 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 + 5w = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5w = 0 + -9 5w = 0 + -9 Combine like terms: 0 + -9 = -9 5w = -9 Divide each side by '5'. w = -1.8 Simplifying w = -1.8

Solution

w = {8, -1.8}

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