(w+9)(w-7)=

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Solution for (w+9)(w-7)= equation:


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

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

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

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

Combine like terms: 9w + -7w = 2w
(-63 + 2w + w2) = 0

Solving
-63 + 2w + w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-9 + -1w)(7 + -1w) = 0

Subproblem 1

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

Subproblem 2

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

Solution

w = {-9, 7}

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