(9-u)(2u-5)=0

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Solution for (9-u)(2u-5)=0 equation:


Simplifying
(9 + -1u)(2u + -5) = 0

Reorder the terms:
(9 + -1u)(-5 + 2u) = 0

Multiply (9 + -1u) * (-5 + 2u)
(9(-5 + 2u) + -1u * (-5 + 2u)) = 0
((-5 * 9 + 2u * 9) + -1u * (-5 + 2u)) = 0
((-45 + 18u) + -1u * (-5 + 2u)) = 0
(-45 + 18u + (-5 * -1u + 2u * -1u)) = 0
(-45 + 18u + (5u + -2u2)) = 0

Combine like terms: 18u + 5u = 23u
(-45 + 23u + -2u2) = 0

Solving
-45 + 23u + -2u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-9 + u)(5 + -2u) = 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 '(5 + -2u)' equal to zero and attempt to solve: Simplifying 5 + -2u = 0 Solving 5 + -2u = 0 Move all terms containing u to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2u = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2u = 0 + -5 -2u = 0 + -5 Combine like terms: 0 + -5 = -5 -2u = -5 Divide each side by '-2'. u = 2.5 Simplifying u = 2.5

Solution

u = {9, 2.5}

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