w(w-4)=45

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Solution for w(w-4)=45 equation:


Simplifying
w(w + -4) = 45

Reorder the terms:
w(-4 + w) = 45
(-4 * w + w * w) = 45
(-4w + w2) = 45

Solving
-4w + w2 = 45

Solving for variable 'w'.

Reorder the terms:
-45 + -4w + w2 = 45 + -45

Combine like terms: 45 + -45 = 0
-45 + -4w + w2 = 0

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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