(4x)(3x+40)=

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Solution for (4x)(3x+40)= equation: 


Simplifying
(4x)(3x + 40) = 0

Remove parenthesis around (4x)
4x(3x + 40) = 0

Reorder the terms:
4x(40 + 3x) = 0
(40 * 4x + 3x * 4x) = 0
(160x + 12x2) = 0

Solving
160x + 12x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x'.
4x(40 + 3x) = 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 '(40 + 3x)' equal to zero and attempt to solve:

Simplifying
40 + 3x = 0

Solving
40 + 3x = 0

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

Add '-40' to each side of the equation.
40 + -40 + 3x = 0 + -40

Combine like terms: 40 + -40 = 0
0 + 3x = 0 + -40
3x = 0 + -40

Combine like terms: 0 + -40 = -40
3x = -40

Divide each side by '3'.
x = -13.33333333

Simplifying
x = -13.33333333
Solution
x = {0, -13.33333333}

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