(2-u)(5u+6)=0

Solution for (2-u)(5u+6)=0 equation:

Simplifying
(2 + -1u)(5u + 6) = 0

Reorder the terms:
(2 + -1u)(6 + 5u) = 0

Multiply (2 + -1u) * (6 + 5u)
(2(6 + 5u) + -1u * (6 + 5u)) = 0
((6 * 2 + 5u * 2) + -1u * (6 + 5u)) = 0
((12 + 10u) + -1u * (6 + 5u)) = 0
(12 + 10u + (6 * -1u + 5u * -1u)) = 0
(12 + 10u + (-6u + -5u2)) = 0

Combine like terms: 10u + -6u = 4u
(12 + 4u + -5u2) = 0

Solving
12 + 4u + -5u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(2 + -1u)(6 + 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 '(6 + 5u)' equal to zero and attempt to solve:

Simplifying
6 + 5u = 0

Solving
6 + 5u = 0

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

Add '-6' to each side of the equation.
6 + -6 + 5u = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 5u = 0 + -6
5u = 0 + -6

Combine like terms: 0 + -6 = -6
5u = -6

Divide each side by '5'.
u = -1.2

Simplifying
u = -1.2
Solution
u = {2, -1.2}