((w-2)(2w+10))-(w(w+5))=220

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Solution for ((w-2)(2w+10))-(w(w+5))=220 equation:


Simplifying
((w + -2)(2w + 10)) + -1(w(w + 5)) = 220

Reorder the terms:
((-2 + w)(2w + 10)) + -1(w(w + 5)) = 220

Reorder the terms:
((-2 + w)(10 + 2w)) + -1(w(w + 5)) = 220

Multiply (-2 + w) * (10 + 2w)
((-2(10 + 2w) + w(10 + 2w))) + -1(w(w + 5)) = 220
(((10 * -2 + 2w * -2) + w(10 + 2w))) + -1(w(w + 5)) = 220
(((-20 + -4w) + w(10 + 2w))) + -1(w(w + 5)) = 220
((-20 + -4w + (10 * w + 2w * w))) + -1(w(w + 5)) = 220
((-20 + -4w + (10w + 2w2))) + -1(w(w + 5)) = 220

Combine like terms: -4w + 10w = 6w
((-20 + 6w + 2w2)) + -1(w(w + 5)) = 220
(-20 + 6w + 2w2) + -1(w(w + 5)) = 220

Remove parenthesis around (-20 + 6w + 2w2)
-20 + 6w + 2w2 + -1(w(w + 5)) = 220

Reorder the terms:
-20 + 6w + 2w2 + -1(w(5 + w)) = 220
-20 + 6w + 2w2 + -1((5 * w + w * w)) = 220
-20 + 6w + 2w2 + -1((5w + w2)) = 220
-20 + 6w + 2w2 + (5w * -1 + w2 * -1) = 220
-20 + 6w + 2w2 + (-5w + -1w2) = 220

Reorder the terms:
-20 + 6w + -5w + 2w2 + -1w2 = 220

Combine like terms: 6w + -5w = 1w
-20 + 1w + 2w2 + -1w2 = 220

Combine like terms: 2w2 + -1w2 = 1w2
-20 + 1w + 1w2 = 220

Solving
-20 + 1w + 1w2 = 220

Solving for variable 'w'.

Reorder the terms:
-20 + -220 + 1w + 1w2 = 220 + -220

Combine like terms: -20 + -220 = -240
-240 + 1w + 1w2 = 220 + -220

Combine like terms: 220 + -220 = 0
-240 + 1w + 1w2 = 0

Factor a trinomial.
(-16 + -1w)(15 + -1w) = 0

Subproblem 1

Set the factor '(-16 + -1w)' equal to zero and attempt to solve: Simplifying -16 + -1w = 0 Solving -16 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + -1w = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -1w = 0 + 16 -1w = 0 + 16 Combine like terms: 0 + 16 = 16 -1w = 16 Divide each side by '-1'. w = -16 Simplifying w = -16

Subproblem 2

Set the factor '(15 + -1w)' equal to zero and attempt to solve: Simplifying 15 + -1w = 0 Solving 15 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1w = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1w = 0 + -15 -1w = 0 + -15 Combine like terms: 0 + -15 = -15 -1w = -15 Divide each side by '-1'. w = 15 Simplifying w = 15

Solution

w = {-16, 15}

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