(5u+3)(7+u)=0

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Solution for (5u+3)(7+u)=0 equation:


Simplifying
(5u + 3)(7 + u) = 0

Reorder the terms:
(3 + 5u)(7 + u) = 0

Multiply (3 + 5u) * (7 + u)
(3(7 + u) + 5u * (7 + u)) = 0
((7 * 3 + u * 3) + 5u * (7 + u)) = 0
((21 + 3u) + 5u * (7 + u)) = 0
(21 + 3u + (7 * 5u + u * 5u)) = 0
(21 + 3u + (35u + 5u2)) = 0

Combine like terms: 3u + 35u = 38u
(21 + 38u + 5u2) = 0

Solving
21 + 38u + 5u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(7 + u)(3 + 5u) = 0

Subproblem 1

Set the factor '(7 + u)' equal to zero and attempt to solve: Simplifying 7 + u = 0 Solving 7 + u = 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 + u = 0 + -7 Combine like terms: 7 + -7 = 0 0 + u = 0 + -7 u = 0 + -7 Combine like terms: 0 + -7 = -7 u = -7 Simplifying u = -7

Subproblem 2

Set the factor '(3 + 5u)' equal to zero and attempt to solve: Simplifying 3 + 5u = 0 Solving 3 + 5u = 0 Move all terms containing u to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 5u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5u = 0 + -3 5u = 0 + -3 Combine like terms: 0 + -3 = -3 5u = -3 Divide each side by '5'. u = -0.6 Simplifying u = -0.6

Solution

u = {-7, -0.6}

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