(9-w)(5w-7)=0

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Solution for (9-w)(5w-7)=0 equation:


Simplifying
(9 + -1w)(5w + -7) = 0

Reorder the terms:
(9 + -1w)(-7 + 5w) = 0

Multiply (9 + -1w) * (-7 + 5w)
(9(-7 + 5w) + -1w * (-7 + 5w)) = 0
((-7 * 9 + 5w * 9) + -1w * (-7 + 5w)) = 0
((-63 + 45w) + -1w * (-7 + 5w)) = 0
(-63 + 45w + (-7 * -1w + 5w * -1w)) = 0
(-63 + 45w + (7w + -5w2)) = 0

Combine like terms: 45w + 7w = 52w
(-63 + 52w + -5w2) = 0

Solving
-63 + 52w + -5w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-9 + w)(7 + -5w) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -5w)' equal to zero and attempt to solve: Simplifying 7 + -5w = 0 Solving 7 + -5w = 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 + -5w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5w = 0 + -7 -5w = 0 + -7 Combine like terms: 0 + -7 = -7 -5w = -7 Divide each side by '-5'. w = 1.4 Simplifying w = 1.4

Solution

w = {9, 1.4}

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