2w^2+9w-4-w^2-8w-16=0

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Solution for 2w^2+9w-4-w^2-8w-16=0 equation:


Simplifying
2w2 + 9w + -4 + -1w2 + -8w + -16 = 0

Reorder the terms:
-4 + -16 + 9w + -8w + 2w2 + -1w2 = 0

Combine like terms: -4 + -16 = -20
-20 + 9w + -8w + 2w2 + -1w2 = 0

Combine like terms: 9w + -8w = 1w
-20 + 1w + 2w2 + -1w2 = 0

Combine like terms: 2w2 + -1w2 = 1w2
-20 + 1w + 1w2 = 0

Solving
-20 + 1w + 1w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-5 + -1w)(4 + -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 '(4 + -1w)' equal to zero and attempt to solve: Simplifying 4 + -1w = 0 Solving 4 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1w = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1w = 0 + -4 -1w = 0 + -4 Combine like terms: 0 + -4 = -4 -1w = -4 Divide each side by '-1'. w = 4 Simplifying w = 4

Solution

w = {-5, 4}

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