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

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


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

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

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

Multiply (4 + 3x) * (-5 + x)
(4(-5 + x) + 3x * (-5 + x)) = (2x + -1)(x + -4)
((-5 * 4 + x * 4) + 3x * (-5 + x)) = (2x + -1)(x + -4)
((-20 + 4x) + 3x * (-5 + x)) = (2x + -1)(x + -4)
(-20 + 4x + (-5 * 3x + x * 3x)) = (2x + -1)(x + -4)
(-20 + 4x + (-15x + 3x2)) = (2x + -1)(x + -4)

Combine like terms: 4x + -15x = -11x
(-20 + -11x + 3x2) = (2x + -1)(x + -4)

Reorder the terms:
-20 + -11x + 3x2 = (-1 + 2x)(x + -4)

Reorder the terms:
-20 + -11x + 3x2 = (-1 + 2x)(-4 + x)

Multiply (-1 + 2x) * (-4 + x)
-20 + -11x + 3x2 = (-1(-4 + x) + 2x * (-4 + x))
-20 + -11x + 3x2 = ((-4 * -1 + x * -1) + 2x * (-4 + x))
-20 + -11x + 3x2 = ((4 + -1x) + 2x * (-4 + x))
-20 + -11x + 3x2 = (4 + -1x + (-4 * 2x + x * 2x))
-20 + -11x + 3x2 = (4 + -1x + (-8x + 2x2))

Combine like terms: -1x + -8x = -9x
-20 + -11x + 3x2 = (4 + -9x + 2x2)

Solving
-20 + -11x + 3x2 = 4 + -9x + 2x2

Solving for variable 'x'.

Reorder the terms:
-20 + -4 + -11x + 9x + 3x2 + -2x2 = 4 + -9x + 2x2 + -4 + 9x + -2x2

Combine like terms: -20 + -4 = -24
-24 + -11x + 9x + 3x2 + -2x2 = 4 + -9x + 2x2 + -4 + 9x + -2x2

Combine like terms: -11x + 9x = -2x
-24 + -2x + 3x2 + -2x2 = 4 + -9x + 2x2 + -4 + 9x + -2x2

Combine like terms: 3x2 + -2x2 = 1x2
-24 + -2x + 1x2 = 4 + -9x + 2x2 + -4 + 9x + -2x2

Reorder the terms:
-24 + -2x + 1x2 = 4 + -4 + -9x + 9x + 2x2 + -2x2

Combine like terms: 4 + -4 = 0
-24 + -2x + 1x2 = 0 + -9x + 9x + 2x2 + -2x2
-24 + -2x + 1x2 = -9x + 9x + 2x2 + -2x2

Combine like terms: -9x + 9x = 0
-24 + -2x + 1x2 = 0 + 2x2 + -2x2
-24 + -2x + 1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-24 + -2x + 1x2 = 0

Factor a trinomial.
(-4 + -1x)(6 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-4, 6}

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