(5u-8)(9-u)=0

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Solution for (5u-8)(9-u)=0 equation:


Simplifying
(5u + -8)(9 + -1u) = 0

Reorder the terms:
(-8 + 5u)(9 + -1u) = 0

Multiply (-8 + 5u) * (9 + -1u)
(-8(9 + -1u) + 5u * (9 + -1u)) = 0
((9 * -8 + -1u * -8) + 5u * (9 + -1u)) = 0
((-72 + 8u) + 5u * (9 + -1u)) = 0
(-72 + 8u + (9 * 5u + -1u * 5u)) = 0
(-72 + 8u + (45u + -5u2)) = 0

Combine like terms: 8u + 45u = 53u
(-72 + 53u + -5u2) = 0

Solving
-72 + 53u + -5u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-9 + u)(8 + -5u) = 0

Subproblem 1

Set the factor '(-9 + u)' equal to zero and attempt to solve: Simplifying -9 + u = 0 Solving -9 + u = 0 Move all terms containing u to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + u = 0 + 9 Combine like terms: -9 + 9 = 0 0 + u = 0 + 9 u = 0 + 9 Combine like terms: 0 + 9 = 9 u = 9 Simplifying u = 9

Subproblem 2

Set the factor '(8 + -5u)' equal to zero and attempt to solve: Simplifying 8 + -5u = 0 Solving 8 + -5u = 0 Move all terms containing u to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -5u = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -5u = 0 + -8 -5u = 0 + -8 Combine like terms: 0 + -8 = -8 -5u = -8 Divide each side by '-5'. u = 1.6 Simplifying u = 1.6

Solution

u = {9, 1.6}

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