(3x+1)(4x-5)=(3x+1)(2x-1)

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Solution for (3x+1)(4x-5)=(3x+1)(2x-1) equation:


Simplifying
(3x + 1)(4x + -5) = (3x + 1)(2x + -1)

Reorder the terms:
(1 + 3x)(4x + -5) = (3x + 1)(2x + -1)

Reorder the terms:
(1 + 3x)(-5 + 4x) = (3x + 1)(2x + -1)

Multiply (1 + 3x) * (-5 + 4x)
(1(-5 + 4x) + 3x * (-5 + 4x)) = (3x + 1)(2x + -1)
((-5 * 1 + 4x * 1) + 3x * (-5 + 4x)) = (3x + 1)(2x + -1)
((-5 + 4x) + 3x * (-5 + 4x)) = (3x + 1)(2x + -1)
(-5 + 4x + (-5 * 3x + 4x * 3x)) = (3x + 1)(2x + -1)
(-5 + 4x + (-15x + 12x2)) = (3x + 1)(2x + -1)

Combine like terms: 4x + -15x = -11x
(-5 + -11x + 12x2) = (3x + 1)(2x + -1)

Reorder the terms:
-5 + -11x + 12x2 = (1 + 3x)(2x + -1)

Reorder the terms:
-5 + -11x + 12x2 = (1 + 3x)(-1 + 2x)

Multiply (1 + 3x) * (-1 + 2x)
-5 + -11x + 12x2 = (1(-1 + 2x) + 3x * (-1 + 2x))
-5 + -11x + 12x2 = ((-1 * 1 + 2x * 1) + 3x * (-1 + 2x))
-5 + -11x + 12x2 = ((-1 + 2x) + 3x * (-1 + 2x))
-5 + -11x + 12x2 = (-1 + 2x + (-1 * 3x + 2x * 3x))
-5 + -11x + 12x2 = (-1 + 2x + (-3x + 6x2))

Combine like terms: 2x + -3x = -1x
-5 + -11x + 12x2 = (-1 + -1x + 6x2)

Solving
-5 + -11x + 12x2 = -1 + -1x + 6x2

Solving for variable 'x'.

Reorder the terms:
-5 + 1 + -11x + x + 12x2 + -6x2 = -1 + -1x + 6x2 + 1 + x + -6x2

Combine like terms: -5 + 1 = -4
-4 + -11x + x + 12x2 + -6x2 = -1 + -1x + 6x2 + 1 + x + -6x2

Combine like terms: -11x + x = -10x
-4 + -10x + 12x2 + -6x2 = -1 + -1x + 6x2 + 1 + x + -6x2

Combine like terms: 12x2 + -6x2 = 6x2
-4 + -10x + 6x2 = -1 + -1x + 6x2 + 1 + x + -6x2

Reorder the terms:
-4 + -10x + 6x2 = -1 + 1 + -1x + x + 6x2 + -6x2

Combine like terms: -1 + 1 = 0
-4 + -10x + 6x2 = 0 + -1x + x + 6x2 + -6x2
-4 + -10x + 6x2 = -1x + x + 6x2 + -6x2

Combine like terms: -1x + x = 0
-4 + -10x + 6x2 = 0 + 6x2 + -6x2
-4 + -10x + 6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-4 + -10x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-2 + -5x + 3x2) = 0

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

Ignore the factor 2.

Subproblem 1

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 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-0.3333333333, 2}

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