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

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


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

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

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

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

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

Reorder the terms:
-2 + 1x + 3x2 = 5 + 2x

Solving
-2 + 1x + 3x2 = 5 + 2x

Solving for variable 'x'.

Reorder the terms:
-2 + -5 + 1x + -2x + 3x2 = 5 + 2x + -5 + -2x

Combine like terms: -2 + -5 = -7
-7 + 1x + -2x + 3x2 = 5 + 2x + -5 + -2x

Combine like terms: 1x + -2x = -1x
-7 + -1x + 3x2 = 5 + 2x + -5 + -2x

Reorder the terms:
-7 + -1x + 3x2 = 5 + -5 + 2x + -2x

Combine like terms: 5 + -5 = 0
-7 + -1x + 3x2 = 0 + 2x + -2x
-7 + -1x + 3x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-7 + -1x + 3x2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-2.333333333 + -0.3333333333x + x2 = 0

Move the constant term to the right:

Add '2.333333333' to each side of the equation.
-2.333333333 + -0.3333333333x + 2.333333333 + x2 = 0 + 2.333333333

Reorder the terms:
-2.333333333 + 2.333333333 + -0.3333333333x + x2 = 0 + 2.333333333

Combine like terms: -2.333333333 + 2.333333333 = 0.000000000
0.000000000 + -0.3333333333x + x2 = 0 + 2.333333333
-0.3333333333x + x2 = 0 + 2.333333333

Combine like terms: 0 + 2.333333333 = 2.333333333
-0.3333333333x + x2 = 2.333333333

The x term is -0.3333333333x.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333x + 0.02777777779 + x2 = 2.333333333 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333x + x2 = 2.333333333 + 0.02777777779

Combine like terms: 2.333333333 + 0.02777777779 = 2.36111111079
0.02777777779 + -0.3333333333x + x2 = 2.36111111079

Factor a perfect square on the left side:
(x + -0.1666666667)(x + -0.1666666667) = 2.36111111079

Calculate the square root of the right side: 1.536590743

Break this problem into two subproblems by setting 
(x + -0.1666666667) equal to 1.536590743 and -1.536590743.

Subproblem 1

x + -0.1666666667 = 1.536590743 Simplifying x + -0.1666666667 = 1.536590743 Reorder the terms: -0.1666666667 + x = 1.536590743 Solving -0.1666666667 + x = 1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = 1.536590743 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = 1.536590743 + 0.1666666667 x = 1.536590743 + 0.1666666667 Combine like terms: 1.536590743 + 0.1666666667 = 1.7032574097 x = 1.7032574097 Simplifying x = 1.7032574097

Subproblem 2

x + -0.1666666667 = -1.536590743 Simplifying x + -0.1666666667 = -1.536590743 Reorder the terms: -0.1666666667 + x = -1.536590743 Solving -0.1666666667 + x = -1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = -1.536590743 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = -1.536590743 + 0.1666666667 x = -1.536590743 + 0.1666666667 Combine like terms: -1.536590743 + 0.1666666667 = -1.3699240763 x = -1.3699240763 Simplifying x = -1.3699240763

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.7032574097, -1.3699240763}

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