(3x+2)(x-1)-13=2x(2-x)

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Solution for (3x+2)(x-1)-13=2x(2-x) equation:


Simplifying
(3x + 2)(x + -1) + -13 = 2x(2 + -1x)

Reorder the terms:
(2 + 3x)(x + -1) + -13 = 2x(2 + -1x)

Reorder the terms:
(2 + 3x)(-1 + x) + -13 = 2x(2 + -1x)

Multiply (2 + 3x) * (-1 + x)
(2(-1 + x) + 3x * (-1 + x)) + -13 = 2x(2 + -1x)
((-1 * 2 + x * 2) + 3x * (-1 + x)) + -13 = 2x(2 + -1x)
((-2 + 2x) + 3x * (-1 + x)) + -13 = 2x(2 + -1x)
(-2 + 2x + (-1 * 3x + x * 3x)) + -13 = 2x(2 + -1x)
(-2 + 2x + (-3x + 3x2)) + -13 = 2x(2 + -1x)

Combine like terms: 2x + -3x = -1x
(-2 + -1x + 3x2) + -13 = 2x(2 + -1x)

Reorder the terms:
-2 + -13 + -1x + 3x2 = 2x(2 + -1x)

Combine like terms: -2 + -13 = -15
-15 + -1x + 3x2 = 2x(2 + -1x)
-15 + -1x + 3x2 = (2 * 2x + -1x * 2x)
-15 + -1x + 3x2 = (4x + -2x2)

Solving
-15 + -1x + 3x2 = 4x + -2x2

Solving for variable 'x'.

Reorder the terms:
-15 + -1x + -4x + 3x2 + 2x2 = 4x + -2x2 + -4x + 2x2

Combine like terms: -1x + -4x = -5x
-15 + -5x + 3x2 + 2x2 = 4x + -2x2 + -4x + 2x2

Combine like terms: 3x2 + 2x2 = 5x2
-15 + -5x + 5x2 = 4x + -2x2 + -4x + 2x2

Reorder the terms:
-15 + -5x + 5x2 = 4x + -4x + -2x2 + 2x2

Combine like terms: 4x + -4x = 0
-15 + -5x + 5x2 = 0 + -2x2 + 2x2
-15 + -5x + 5x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-15 + -5x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-3 + -1x + x2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-3 + -1x + x2)' equal to zero and attempt to solve: Simplifying -3 + -1x + x2 = 0 Solving -3 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + -1x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + -1x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x + x2 = 0 + 3 -1x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 -1x + x2 = 3 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = 3 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 3 + 0.25 Combine like terms: 3 + 0.25 = 3.25 0.25 + -1x + x2 = 3.25 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (x + -0.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + -0.5 = 1.802775638 Simplifying x + -0.5 = 1.802775638 Reorder the terms: -0.5 + x = 1.802775638 Solving -0.5 + x = 1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 1.802775638 + 0.5 x = 1.802775638 + 0.5 Combine like terms: 1.802775638 + 0.5 = 2.302775638 x = 2.302775638 Simplifying x = 2.302775638

Subproblem 2

x + -0.5 = -1.802775638 Simplifying x + -0.5 = -1.802775638 Reorder the terms: -0.5 + x = -1.802775638 Solving -0.5 + x = -1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -1.802775638 + 0.5 x = -1.802775638 + 0.5 Combine like terms: -1.802775638 + 0.5 = -1.302775638 x = -1.302775638 Simplifying x = -1.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.302775638, -1.302775638}

Solution

x = {2.302775638, -1.302775638}

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