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

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


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

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

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

Multiply (3 + x) * (-4 + 3x)
(3(-4 + 3x) + x(-4 + 3x)) = (x + 4)(2x + -1)
((-4 * 3 + 3x * 3) + x(-4 + 3x)) = (x + 4)(2x + -1)
((-12 + 9x) + x(-4 + 3x)) = (x + 4)(2x + -1)
(-12 + 9x + (-4 * x + 3x * x)) = (x + 4)(2x + -1)
(-12 + 9x + (-4x + 3x2)) = (x + 4)(2x + -1)

Combine like terms: 9x + -4x = 5x
(-12 + 5x + 3x2) = (x + 4)(2x + -1)

Reorder the terms:
-12 + 5x + 3x2 = (4 + x)(2x + -1)

Reorder the terms:
-12 + 5x + 3x2 = (4 + x)(-1 + 2x)

Multiply (4 + x) * (-1 + 2x)
-12 + 5x + 3x2 = (4(-1 + 2x) + x(-1 + 2x))
-12 + 5x + 3x2 = ((-1 * 4 + 2x * 4) + x(-1 + 2x))
-12 + 5x + 3x2 = ((-4 + 8x) + x(-1 + 2x))
-12 + 5x + 3x2 = (-4 + 8x + (-1 * x + 2x * x))
-12 + 5x + 3x2 = (-4 + 8x + (-1x + 2x2))

Combine like terms: 8x + -1x = 7x
-12 + 5x + 3x2 = (-4 + 7x + 2x2)

Solving
-12 + 5x + 3x2 = -4 + 7x + 2x2

Solving for variable 'x'.

Reorder the terms:
-12 + 4 + 5x + -7x + 3x2 + -2x2 = -4 + 7x + 2x2 + 4 + -7x + -2x2

Combine like terms: -12 + 4 = -8
-8 + 5x + -7x + 3x2 + -2x2 = -4 + 7x + 2x2 + 4 + -7x + -2x2

Combine like terms: 5x + -7x = -2x
-8 + -2x + 3x2 + -2x2 = -4 + 7x + 2x2 + 4 + -7x + -2x2

Combine like terms: 3x2 + -2x2 = 1x2
-8 + -2x + 1x2 = -4 + 7x + 2x2 + 4 + -7x + -2x2

Reorder the terms:
-8 + -2x + 1x2 = -4 + 4 + 7x + -7x + 2x2 + -2x2

Combine like terms: -4 + 4 = 0
-8 + -2x + 1x2 = 0 + 7x + -7x + 2x2 + -2x2
-8 + -2x + 1x2 = 7x + -7x + 2x2 + -2x2

Combine like terms: 7x + -7x = 0
-8 + -2x + 1x2 = 0 + 2x2 + -2x2
-8 + -2x + 1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-8 + -2x + 1x2 = 0

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

Subproblem 1

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

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 = {-2, 4}

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