(1-u)(4u-3)=0

Solution for (1-u)(4u-3)=0 equation:

Simplifying
(1 + -1u)(4u + -3) = 0

Reorder the terms:
(1 + -1u)(-3 + 4u) = 0

Multiply (1 + -1u) * (-3 + 4u)
(1(-3 + 4u) + -1u * (-3 + 4u)) = 0
((-3 * 1 + 4u * 1) + -1u * (-3 + 4u)) = 0
((-3 + 4u) + -1u * (-3 + 4u)) = 0
(-3 + 4u + (-3 * -1u + 4u * -1u)) = 0
(-3 + 4u + (3u + -4u2)) = 0

Combine like terms: 4u + 3u = 7u
(-3 + 7u + -4u2) = 0

Solving
-3 + 7u + -4u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-1 + u)(3 + -4u) = 0

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

Simplifying
-1 + u = 0

Solving
-1 + u = 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 + u = 0 + 1

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

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

Simplifying
u = 1
Subproblem 2
Set the factor '(3 + -4u)' equal to zero and attempt to solve:

Simplifying
3 + -4u = 0

Solving
3 + -4u = 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 + -4u = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4u = 0 + -3
-4u = 0 + -3

Combine like terms: 0 + -3 = -3
-4u = -3

Divide each side by '-4'.
u = 0.75

Simplifying
u = 0.75
Solution
u = {1, 0.75}