(u-6)(u+4)=

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

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

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

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

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

Combine like terms: -6u + 4u = -2u
(-24 + -2u + u2) = 0

Solving
-24 + -2u + u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-4 + -1u)(6 + -1u) = 0

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

Simplifying
-4 + -1u = 0

Solving
-4 + -1u = 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 + -1u = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1u = 0 + 4
-1u = 0 + 4

Combine like terms: 0 + 4 = 4
-1u = 4

Divide each side by '-1'.
u = -4

Simplifying
u = -4
Subproblem 2
Set the factor '(6 + -1u)' equal to zero and attempt to solve:

Simplifying
6 + -1u = 0

Solving
6 + -1u = 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 + -1u = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1u = 0 + -6
-1u = 0 + -6

Combine like terms: 0 + -6 = -6
-1u = -6

Divide each side by '-1'.
u = 6

Simplifying
u = 6
Solution
u = {-4, 6}