(5+w)(5w-8)=0

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Solution for (5+w)(5w-8)=0 equation: 


Simplifying
(5 + w)(5w + -8) = 0

Reorder the terms:
(5 + w)(-8 + 5w) = 0

Multiply (5 + w) * (-8 + 5w)
(5(-8 + 5w) + w(-8 + 5w)) = 0
((-8 * 5 + 5w * 5) + w(-8 + 5w)) = 0
((-40 + 25w) + w(-8 + 5w)) = 0
(-40 + 25w + (-8 * w + 5w * w)) = 0
(-40 + 25w + (-8w + 5w2)) = 0

Combine like terms: 25w + -8w = 17w
(-40 + 17w + 5w2) = 0

Solving
-40 + 17w + 5w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-5 + -1w)(8 + -5w) = 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 '(8 + -5w)' equal to zero and attempt to solve:

Simplifying
8 + -5w = 0

Solving
8 + -5w = 0

Move all terms containing w to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + -5w = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -5w = 0 + -8
-5w = 0 + -8

Combine like terms: 0 + -8 = -8
-5w = -8

Divide each side by '-5'.
w = 1.6

Simplifying
w = 1.6
Solution
w = {-5, 1.6}

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