(4-u)(4u-6)=0

Solution for (4-u)(4u-6)=0 equation:

Simplifying
(4 + -1u)(4u + -6) = 0

Reorder the terms:
(4 + -1u)(-6 + 4u) = 0

Multiply (4 + -1u) * (-6 + 4u)
(4(-6 + 4u) + -1u * (-6 + 4u)) = 0
((-6 * 4 + 4u * 4) + -1u * (-6 + 4u)) = 0
((-24 + 16u) + -1u * (-6 + 4u)) = 0
(-24 + 16u + (-6 * -1u + 4u * -1u)) = 0
(-24 + 16u + (6u + -4u2)) = 0

Combine like terms: 16u + 6u = 22u
(-24 + 22u + -4u2) = 0

Solving
-24 + 22u + -4u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + 11u + -2u2) = 0

Factor a trinomial.
2((-4 + u)(3 + -2u)) = 0

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

Simplifying
-4 + u = 0

Solving
-4 + u = 0

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

Add '4' to each side of the equation.
-4 + 4 + u = 0 + 4

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

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

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

Simplifying
3 + -2u = 0

Solving
3 + -2u = 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 + -2u = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2u = 0 + -3
-2u = 0 + -3

Combine like terms: 0 + -3 = -3
-2u = -3

Divide each side by '-2'.
u = 1.5

Simplifying
u = 1.5
Solution
u = {4, 1.5}