2x(x-7)(3x+1)=0

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Solution for 2x(x-7)(3x+1)=0 equation: 


Simplifying
2x(x + -7)(3x + 1) = 0

Reorder the terms:
2x(-7 + x)(3x + 1) = 0

Reorder the terms:
2x(-7 + x)(1 + 3x) = 0

Multiply (-7 + x) * (1 + 3x)
2x(-7(1 + 3x) + x(1 + 3x)) = 0
2x((1 * -7 + 3x * -7) + x(1 + 3x)) = 0
2x((-7 + -21x) + x(1 + 3x)) = 0
2x(-7 + -21x + (1 * x + 3x * x)) = 0
2x(-7 + -21x + (1x + 3x2)) = 0

Combine like terms: -21x + 1x = -20x
2x(-7 + -20x + 3x2) = 0
(-7 * 2x + -20x * 2x + 3x2 * 2x) = 0
(-14x + -40x2 + 6x3) = 0

Solving
-14x + -40x2 + 6x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(-7 + -20x + 3x2) = 0

Factor a trinomial.
2x((-1 + -3x)(7 + -1x)) = 0

Ignore the factor 2.

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 '(-1 + -3x)' equal to zero and attempt to solve:

Simplifying
-1 + -3x = 0

Solving
-1 + -3x = 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 + -3x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3x = 0 + 1
-3x = 0 + 1

Combine like terms: 0 + 1 = 1
-3x = 1

Divide each side by '-3'.
x = -0.3333333333

Simplifying
x = -0.3333333333

Subproblem 3
Set the factor '(7 + -1x)' equal to zero and attempt to solve:

Simplifying
7 + -1x = 0

Solving
7 + -1x = 0

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

Add '-7' to each side of the equation.
7 + -7 + -1x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1x = 0 + -7
-1x = 0 + -7

Combine like terms: 0 + -7 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7
Solution
x = {0, -0.3333333333, 7}

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