(5u+7)(2-u)=0

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Solution for (5u+7)(2-u)=0 equation:


Simplifying
(5u + 7)(2 + -1u) = 0

Reorder the terms:
(7 + 5u)(2 + -1u) = 0

Multiply (7 + 5u) * (2 + -1u)
(7(2 + -1u) + 5u * (2 + -1u)) = 0
((2 * 7 + -1u * 7) + 5u * (2 + -1u)) = 0
((14 + -7u) + 5u * (2 + -1u)) = 0
(14 + -7u + (2 * 5u + -1u * 5u)) = 0
(14 + -7u + (10u + -5u2)) = 0

Combine like terms: -7u + 10u = 3u
(14 + 3u + -5u2) = 0

Solving
14 + 3u + -5u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(2 + -1u)(7 + 5u) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + 5u)' equal to zero and attempt to solve: Simplifying 7 + 5u = 0 Solving 7 + 5u = 0 Move all terms containing u to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 5u = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 5u = 0 + -7 5u = 0 + -7 Combine like terms: 0 + -7 = -7 5u = -7 Divide each side by '5'. u = -1.4 Simplifying u = -1.4

Solution

u = {2, -1.4}

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