0=2w^2-7w-99

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Solution for 0=2w^2-7w-99 equation:


Simplifying
0 = 2w2 + -7w + -99

Reorder the terms:
0 = -99 + -7w + 2w2

Solving
0 = -99 + -7w + 2w2

Solving for variable 'w'.

Combine like terms: 0 + 99 = 99
99 + 7w + -2w2 = -99 + -7w + 2w2 + 99 + 7w + -2w2

Reorder the terms:
99 + 7w + -2w2 = -99 + 99 + -7w + 7w + 2w2 + -2w2

Combine like terms: -99 + 99 = 0
99 + 7w + -2w2 = 0 + -7w + 7w + 2w2 + -2w2
99 + 7w + -2w2 = -7w + 7w + 2w2 + -2w2

Combine like terms: -7w + 7w = 0
99 + 7w + -2w2 = 0 + 2w2 + -2w2
99 + 7w + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
99 + 7w + -2w2 = 0

Factor a trinomial.
(9 + -1w)(11 + 2w) = 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 '(11 + 2w)' equal to zero and attempt to solve: Simplifying 11 + 2w = 0 Solving 11 + 2w = 0 Move all terms containing w to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + 2w = 0 + -11 Combine like terms: 11 + -11 = 0 0 + 2w = 0 + -11 2w = 0 + -11 Combine like terms: 0 + -11 = -11 2w = -11 Divide each side by '2'. w = -5.5 Simplifying w = -5.5

Solution

w = {9, -5.5}

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