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

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


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

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

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

Multiply (5 + 6x) * (4 + x)
(5(4 + x) + 6x * (4 + x)) = 0
((4 * 5 + x * 5) + 6x * (4 + x)) = 0
((20 + 5x) + 6x * (4 + x)) = 0
(20 + 5x + (4 * 6x + x * 6x)) = 0
(20 + 5x + (24x + 6x2)) = 0

Combine like terms: 5x + 24x = 29x
(20 + 29x + 6x2) = 0

Solving
20 + 29x + 6x2 = 0

Solving for variable 'x'.

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


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

Simplifying
4 + x = 0

Solving
4 + x = 0

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

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

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

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

Simplifying
x = -4

Subproblem 2
Set the factor '(5 + 6x)' equal to zero and attempt to solve:

Simplifying
5 + 6x = 0

Solving
5 + 6x = 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 + 6x = 0 + -5

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

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

Divide each side by '6'.
x = -0.8333333333

Simplifying
x = -0.8333333333
Solution
x = {-4, -0.8333333333}

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