4x(2x-1)(x+5)=0

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Solution for 4x(2x-1)(x+5)=0 equation: 


Simplifying
4x(2x + -1)(x + 5) = 0

Reorder the terms:
4x(-1 + 2x)(x + 5) = 0

Reorder the terms:
4x(-1 + 2x)(5 + x) = 0

Multiply (-1 + 2x) * (5 + x)
4x(-1(5 + x) + 2x * (5 + x)) = 0
4x((5 * -1 + x * -1) + 2x * (5 + x)) = 0
4x((-5 + -1x) + 2x * (5 + x)) = 0
4x(-5 + -1x + (5 * 2x + x * 2x)) = 0
4x(-5 + -1x + (10x + 2x2)) = 0

Combine like terms: -1x + 10x = 9x
4x(-5 + 9x + 2x2) = 0
(-5 * 4x + 9x * 4x + 2x2 * 4x) = 0
(-20x + 36x2 + 8x3) = 0

Solving
-20x + 36x2 + 8x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x'.
4x(-5 + 9x + 2x2) = 0

Factor a trinomial.
4x((-5 + -1x)(1 + -2x)) = 0

Ignore the factor 4.

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 + -1x)' equal to zero and attempt to solve:

Simplifying
-5 + -1x = 0

Solving
-5 + -1x = 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 + -1x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1x = 0 + 5
-1x = 0 + 5

Combine like terms: 0 + 5 = 5
-1x = 5

Divide each side by '-1'.
x = -5

Simplifying
x = -5

Subproblem 3
Set the factor '(1 + -2x)' equal to zero and attempt to solve:

Simplifying
1 + -2x = 0

Solving
1 + -2x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -2x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2x = 0 + -1
-2x = 0 + -1

Combine like terms: 0 + -1 = -1
-2x = -1

Divide each side by '-2'.
x = 0.5

Simplifying
x = 0.5
Solution
x = {0, -5, 0.5}

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