18w^2+81w-45=0

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Solution for 18w^2+81w-45=0 equation:


Simplifying
18w2 + 81w + -45 = 0

Reorder the terms:
-45 + 81w + 18w2 = 0

Solving
-45 + 81w + 18w2 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '9'.
9(-5 + 9w + 2w2) = 0

Factor a trinomial.
9((-5 + -1w)(1 + -2w)) = 0

Ignore the factor 9.

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 '(1 + -2w)' equal to zero and attempt to solve: Simplifying 1 + -2w = 0 Solving 1 + -2w = 0 Move all terms containing w to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2w = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2w = 0 + -1 -2w = 0 + -1 Combine like terms: 0 + -1 = -1 -2w = -1 Divide each side by '-2'. w = 0.5 Simplifying w = 0.5

Solution

w = {-5, 0.5}

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