(3x)(x-2)=(x+4)(x-1)

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Solution for (3x)(x-2)=(x+4)(x-1) equation: 


Simplifying
(3x)(x + -2) = (x + 4)(x + -1)

Remove parenthesis around (3x)
3x(x + -2) = (x + 4)(x + -1)

Reorder the terms:
3x(-2 + x) = (x + 4)(x + -1)
(-2 * 3x + x * 3x) = (x + 4)(x + -1)
(-6x + 3x2) = (x + 4)(x + -1)

Reorder the terms:
-6x + 3x2 = (4 + x)(x + -1)

Reorder the terms:
-6x + 3x2 = (4 + x)(-1 + x)

Multiply (4 + x) * (-1 + x)
-6x + 3x2 = (4(-1 + x) + x(-1 + x))
-6x + 3x2 = ((-1 * 4 + x * 4) + x(-1 + x))
-6x + 3x2 = ((-4 + 4x) + x(-1 + x))
-6x + 3x2 = (-4 + 4x + (-1 * x + x * x))
-6x + 3x2 = (-4 + 4x + (-1x + x2))

Combine like terms: 4x + -1x = 3x
-6x + 3x2 = (-4 + 3x + x2)

Solving
-6x + 3x2 = -4 + 3x + x2

Solving for variable 'x'.

Reorder the terms:
4 + -6x + -3x + 3x2 + -1x2 = -4 + 3x + x2 + 4 + -3x + -1x2

Combine like terms: -6x + -3x = -9x
4 + -9x + 3x2 + -1x2 = -4 + 3x + x2 + 4 + -3x + -1x2

Combine like terms: 3x2 + -1x2 = 2x2
4 + -9x + 2x2 = -4 + 3x + x2 + 4 + -3x + -1x2

Reorder the terms:
4 + -9x + 2x2 = -4 + 4 + 3x + -3x + x2 + -1x2

Combine like terms: -4 + 4 = 0
4 + -9x + 2x2 = 0 + 3x + -3x + x2 + -1x2
4 + -9x + 2x2 = 3x + -3x + x2 + -1x2

Combine like terms: 3x + -3x = 0
4 + -9x + 2x2 = 0 + x2 + -1x2
4 + -9x + 2x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
4 + -9x + 2x2 = 0

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


Subproblem 1
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

Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying
4 + -1x = 0

Solving
4 + -1x = 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 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 0 + -4
-1x = 0 + -4

Combine like terms: 0 + -4 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4
Solution
x = {0.5, 4}

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