(x-6)(4x+5)=0

Solution for (x-6)(4x+5)=0 equation:

Simplifying
(x + -6)(4x + 5) = 0

Reorder the terms:
(-6 + x)(4x + 5) = 0

Reorder the terms:
(-6 + x)(5 + 4x) = 0

Multiply (-6 + x) * (5 + 4x)
(-6(5 + 4x) + x(5 + 4x)) = 0
((5 * -6 + 4x * -6) + x(5 + 4x)) = 0
((-30 + -24x) + x(5 + 4x)) = 0
(-30 + -24x + (5 * x + 4x * x)) = 0
(-30 + -24x + (5x + 4x2)) = 0

Combine like terms: -24x + 5x = -19x
(-30 + -19x + 4x2) = 0

Solving
-30 + -19x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -4x)(6 + -1x) = 0

Subproblem 1
Set the factor '(-5 + -4x)' equal to zero and attempt to solve:

Simplifying
-5 + -4x = 0

Solving
-5 + -4x = 0

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

Add '5' to each side of the equation.
-5 + 5 + -4x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -4x = 0 + 5
-4x = 0 + 5

Combine like terms: 0 + 5 = 5
-4x = 5

Divide each side by '-4'.
x = -1.25

Simplifying
x = -1.25
Subproblem 2
Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying
6 + -1x = 0

Solving
6 + -1x = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 0 + -6

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

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

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

Simplifying
x = 6
Solution
x = {-1.25, 6}