3+8x=3x*2(x-1)

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Solution for 3+8x=3x*2(x-1) equation:


Simplifying
3 + 8x = 3x * 2(x + -1)

Reorder the terms:
3 + 8x = 3x * 2(-1 + x)

Reorder the terms for easier multiplication:
3 + 8x = 3 * 2x(-1 + x)

Multiply 3 * 2
3 + 8x = 6x(-1 + x)
3 + 8x = (-1 * 6x + x * 6x)
3 + 8x = (-6x + 6x2)

Solving
3 + 8x = -6x + 6x2

Solving for variable 'x'.

Combine like terms: 8x + 6x = 14x
3 + 14x + -6x2 = -6x + 6x2 + 6x + -6x2

Reorder the terms:
3 + 14x + -6x2 = -6x + 6x + 6x2 + -6x2

Combine like terms: -6x + 6x = 0
3 + 14x + -6x2 = 0 + 6x2 + -6x2
3 + 14x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
3 + 14x + -6x2 = 0

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
-0.5 + -2.333333333x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -2.333333333x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -2.333333333x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -2.333333333x + x2 = 0 + 0.5
-2.333333333x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-2.333333333x + x2 = 0.5

The x term is -2.333333333x.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333x + 1.361111112 + x2 = 0.5 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333x + x2 = 0.5 + 1.361111112

Combine like terms: 0.5 + 1.361111112 = 1.861111112
1.361111112 + -2.333333333x + x2 = 1.861111112

Factor a perfect square on the left side:
(x + -1.166666667)(x + -1.166666667) = 1.861111112

Calculate the square root of the right side: 1.364225462

Break this problem into two subproblems by setting 
(x + -1.166666667) equal to 1.364225462 and -1.364225462.

Subproblem 1

x + -1.166666667 = 1.364225462 Simplifying x + -1.166666667 = 1.364225462 Reorder the terms: -1.166666667 + x = 1.364225462 Solving -1.166666667 + x = 1.364225462 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = 1.364225462 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = 1.364225462 + 1.166666667 x = 1.364225462 + 1.166666667 Combine like terms: 1.364225462 + 1.166666667 = 2.530892129 x = 2.530892129 Simplifying x = 2.530892129

Subproblem 2

x + -1.166666667 = -1.364225462 Simplifying x + -1.166666667 = -1.364225462 Reorder the terms: -1.166666667 + x = -1.364225462 Solving -1.166666667 + x = -1.364225462 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = -1.364225462 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = -1.364225462 + 1.166666667 x = -1.364225462 + 1.166666667 Combine like terms: -1.364225462 + 1.166666667 = -0.197558795 x = -0.197558795 Simplifying x = -0.197558795

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.530892129, -0.197558795}

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