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

Solution for (3u+8)(1-u)=0 equation:

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

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

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

Combine like terms: -8u + 3u = -5u
(8 + -5u + -3u2) = 0

Solving
8 + -5u + -3u2 = 0

Solving for variable 'u'.

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

Subproblem 1
Set the factor '(1 + -1u)' equal to zero and attempt to solve:

Simplifying
1 + -1u = 0

Solving
1 + -1u = 0

Move all terms containing u to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1u = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1u = 0 + -1
-1u = 0 + -1

Combine like terms: 0 + -1 = -1
-1u = -1

Divide each side by '-1'.
u = 1

Simplifying
u = 1
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 = {1, -2.666666667}