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

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


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

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

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

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

Combine like terms: 6x + -20x = -14x
3x(-15 + -14x + 8x2) = 0
(-15 * 3x + -14x * 3x + 8x2 * 3x) = 0
(-45x + -42x2 + 24x3) = 0

Solving
-45x + -42x2 + 24x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-15 + -14x + 8x2) = 0

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

Ignore the factor 3.

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 '(-3 + -4x)' equal to zero and attempt to solve:

Simplifying
-3 + -4x = 0

Solving
-3 + -4x = 0

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

Add '3' to each side of the equation.
-3 + 3 + -4x = 0 + 3

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

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

Divide each side by '-4'.
x = -0.75

Simplifying
x = -0.75

Subproblem 3
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
Solution
x = {0, -0.75, 2.5}

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