x=2(x-3)(x-8)

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Solution for x=2(x-3)(x-8) equation:


Simplifying
x = 2(x + -3)(x + -8)

Reorder the terms:
x = 2(-3 + x)(x + -8)

Reorder the terms:
x = 2(-3 + x)(-8 + x)

Multiply (-3 + x) * (-8 + x)
x = 2(-3(-8 + x) + x(-8 + x))
x = 2((-8 * -3 + x * -3) + x(-8 + x))
x = 2((24 + -3x) + x(-8 + x))
x = 2(24 + -3x + (-8 * x + x * x))
x = 2(24 + -3x + (-8x + x2))

Combine like terms: -3x + -8x = -11x
x = 2(24 + -11x + x2)
x = (24 * 2 + -11x * 2 + x2 * 2)
x = (48 + -22x + 2x2)

Solving
x = 48 + -22x + 2x2

Solving for variable 'x'.

Reorder the terms:
-48 + x + 22x + -2x2 = 48 + -22x + 2x2 + -48 + 22x + -2x2

Combine like terms: x + 22x = 23x
-48 + 23x + -2x2 = 48 + -22x + 2x2 + -48 + 22x + -2x2

Reorder the terms:
-48 + 23x + -2x2 = 48 + -48 + -22x + 22x + 2x2 + -2x2

Combine like terms: 48 + -48 = 0
-48 + 23x + -2x2 = 0 + -22x + 22x + 2x2 + -2x2
-48 + 23x + -2x2 = -22x + 22x + 2x2 + -2x2

Combine like terms: -22x + 22x = 0
-48 + 23x + -2x2 = 0 + 2x2 + -2x2
-48 + 23x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-48 + 23x + -2x2 = 0

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

Divide each side by '-2'.
24 + -11.5x + x2 = 0

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + -11.5x + -24 + x2 = 0 + -24

Reorder the terms:
24 + -24 + -11.5x + x2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -11.5x + x2 = 0 + -24
-11.5x + x2 = 0 + -24

Combine like terms: 0 + -24 = -24
-11.5x + x2 = -24

The x term is -11.5x.  Take half its coefficient (-5.75).
Square it (33.0625) and add it to both sides.

Add '33.0625' to each side of the equation.
-11.5x + 33.0625 + x2 = -24 + 33.0625

Reorder the terms:
33.0625 + -11.5x + x2 = -24 + 33.0625

Combine like terms: -24 + 33.0625 = 9.0625
33.0625 + -11.5x + x2 = 9.0625

Factor a perfect square on the left side:
(x + -5.75)(x + -5.75) = 9.0625

Calculate the square root of the right side: 3.010398645

Break this problem into two subproblems by setting 
(x + -5.75) equal to 3.010398645 and -3.010398645.

Subproblem 1

x + -5.75 = 3.010398645 Simplifying x + -5.75 = 3.010398645 Reorder the terms: -5.75 + x = 3.010398645 Solving -5.75 + x = 3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = 3.010398645 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = 3.010398645 + 5.75 x = 3.010398645 + 5.75 Combine like terms: 3.010398645 + 5.75 = 8.760398645 x = 8.760398645 Simplifying x = 8.760398645

Subproblem 2

x + -5.75 = -3.010398645 Simplifying x + -5.75 = -3.010398645 Reorder the terms: -5.75 + x = -3.010398645 Solving -5.75 + x = -3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = -3.010398645 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = -3.010398645 + 5.75 x = -3.010398645 + 5.75 Combine like terms: -3.010398645 + 5.75 = 2.739601355 x = 2.739601355 Simplifying x = 2.739601355

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.760398645, 2.739601355}

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