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

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


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

Reorder the terms:
2x(-5 + x) = 2x + 1(x + -4)
(-5 * 2x + x * 2x) = 2x + 1(x + -4)
(-10x + 2x2) = 2x + 1(x + -4)

Reorder the terms:
-10x + 2x2 = 2x + 1(-4 + x)
-10x + 2x2 = 2x + (-4 * 1 + x * 1)
-10x + 2x2 = 2x + (-4 + 1x)

Reorder the terms:
-10x + 2x2 = -4 + 2x + 1x

Combine like terms: 2x + 1x = 3x
-10x + 2x2 = -4 + 3x

Solving
-10x + 2x2 = -4 + 3x

Solving for variable 'x'.

Reorder the terms:
4 + -10x + -3x + 2x2 = -4 + 3x + 4 + -3x

Combine like terms: -10x + -3x = -13x
4 + -13x + 2x2 = -4 + 3x + 4 + -3x

Reorder the terms:
4 + -13x + 2x2 = -4 + 4 + 3x + -3x

Combine like terms: -4 + 4 = 0
4 + -13x + 2x2 = 0 + 3x + -3x
4 + -13x + 2x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
4 + -13x + 2x2 = 0

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

Divide each side by '2'.
2 + -6.5x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -6.5x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -6.5x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -6.5x + x2 = 0 + -2
-6.5x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-6.5x + x2 = -2

The x term is -6.5x.  Take half its coefficient (-3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
-6.5x + 10.5625 + x2 = -2 + 10.5625

Reorder the terms:
10.5625 + -6.5x + x2 = -2 + 10.5625

Combine like terms: -2 + 10.5625 = 8.5625
10.5625 + -6.5x + x2 = 8.5625

Factor a perfect square on the left side:
(x + -3.25)(x + -3.25) = 8.5625

Calculate the square root of the right side: 2.926174978

Break this problem into two subproblems by setting 
(x + -3.25) equal to 2.926174978 and -2.926174978.

Subproblem 1

x + -3.25 = 2.926174978 Simplifying x + -3.25 = 2.926174978 Reorder the terms: -3.25 + x = 2.926174978 Solving -3.25 + x = 2.926174978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + x = 2.926174978 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + x = 2.926174978 + 3.25 x = 2.926174978 + 3.25 Combine like terms: 2.926174978 + 3.25 = 6.176174978 x = 6.176174978 Simplifying x = 6.176174978

Subproblem 2

x + -3.25 = -2.926174978 Simplifying x + -3.25 = -2.926174978 Reorder the terms: -3.25 + x = -2.926174978 Solving -3.25 + x = -2.926174978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + x = -2.926174978 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + x = -2.926174978 + 3.25 x = -2.926174978 + 3.25 Combine like terms: -2.926174978 + 3.25 = 0.323825022 x = 0.323825022 Simplifying x = 0.323825022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.176174978, 0.323825022}

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