(3x+4)x(2x+5)=

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Solution for (3x+4)x(2x+5)= equation: 


Simplifying
(3x + 4) * x(2x + 5) = 0

Reorder the terms:
(4 + 3x) * x(2x + 5) = 0

Reorder the terms:
(4 + 3x) * x(5 + 2x) = 0

Reorder the terms for easier multiplication:
x(4 + 3x)(5 + 2x) = 0

Multiply (4 + 3x) * (5 + 2x)
x(4(5 + 2x) + 3x * (5 + 2x)) = 0
x((5 * 4 + 2x * 4) + 3x * (5 + 2x)) = 0
x((20 + 8x) + 3x * (5 + 2x)) = 0
x(20 + 8x + (5 * 3x + 2x * 3x)) = 0
x(20 + 8x + (15x + 6x2)) = 0

Combine like terms: 8x + 15x = 23x
x(20 + 23x + 6x2) = 0
(20 * x + 23x * x + 6x2 * x) = 0
(20x + 23x2 + 6x3) = 0

Solving
20x + 23x2 + 6x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(20 + 23x + 6x2) = 0

Factor a trinomial.
x((5 + 2x)(4 + 3x)) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

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

Simplifying
5 + 2x = 0

Solving
5 + 2x = 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 + 2x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 2x = 0 + -5
2x = 0 + -5

Combine like terms: 0 + -5 = -5
2x = -5

Divide each side by '2'.
x = -2.5

Simplifying
x = -2.5

Subproblem 3
Set the factor '(4 + 3x)' equal to zero and attempt to solve:

Simplifying
4 + 3x = 0

Solving
4 + 3x = 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 + 3x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 3x = 0 + -4
3x = 0 + -4

Combine like terms: 0 + -4 = -4
3x = -4

Divide each side by '3'.
x = -1.333333333

Simplifying
x = -1.333333333
Solution
x = {0, -2.5, -1.333333333}

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