(5-u)(3u+8)=0

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Solution for (5-u)(3u+8)=0 equation:


Simplifying
(5 + -1u)(3u + 8) = 0

Reorder the terms:
(5 + -1u)(8 + 3u) = 0

Multiply (5 + -1u) * (8 + 3u)
(5(8 + 3u) + -1u * (8 + 3u)) = 0
((8 * 5 + 3u * 5) + -1u * (8 + 3u)) = 0
((40 + 15u) + -1u * (8 + 3u)) = 0
(40 + 15u + (8 * -1u + 3u * -1u)) = 0
(40 + 15u + (-8u + -3u2)) = 0

Combine like terms: 15u + -8u = 7u
(40 + 7u + -3u2) = 0

Solving
40 + 7u + -3u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(5 + -1u)(8 + 3u) = 0

Subproblem 1

Set the factor '(5 + -1u)' equal to zero and attempt to solve: Simplifying 5 + -1u = 0 Solving 5 + -1u = 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 + -1u = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1u = 0 + -5 -1u = 0 + -5 Combine like terms: 0 + -5 = -5 -1u = -5 Divide each side by '-1'. u = 5 Simplifying u = 5

Subproblem 2

Set the factor '(8 + 3u)' equal to zero and attempt to solve: Simplifying 8 + 3u = 0 Solving 8 + 3u = 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 + 3u = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 3u = 0 + -8 3u = 0 + -8 Combine like terms: 0 + -8 = -8 3u = -8 Divide each side by '3'. u = -2.666666667 Simplifying u = -2.666666667

Solution

u = {5, -2.666666667}

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