3x-5x(x-6)=2(x-10)+10

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Solution for 3x-5x(x-6)=2(x-10)+10 equation:


Simplifying
3x + -5x(x + -6) = 2(x + -10) + 10

Reorder the terms:
3x + -5x(-6 + x) = 2(x + -10) + 10
3x + (-6 * -5x + x * -5x) = 2(x + -10) + 10
3x + (30x + -5x2) = 2(x + -10) + 10

Combine like terms: 3x + 30x = 33x
33x + -5x2 = 2(x + -10) + 10

Reorder the terms:
33x + -5x2 = 2(-10 + x) + 10
33x + -5x2 = (-10 * 2 + x * 2) + 10
33x + -5x2 = (-20 + 2x) + 10

Reorder the terms:
33x + -5x2 = -20 + 10 + 2x

Combine like terms: -20 + 10 = -10
33x + -5x2 = -10 + 2x

Solving
33x + -5x2 = -10 + 2x

Solving for variable 'x'.

Reorder the terms:
10 + 33x + -2x + -5x2 = -10 + 2x + 10 + -2x

Combine like terms: 33x + -2x = 31x
10 + 31x + -5x2 = -10 + 2x + 10 + -2x

Reorder the terms:
10 + 31x + -5x2 = -10 + 10 + 2x + -2x

Combine like terms: -10 + 10 = 0
10 + 31x + -5x2 = 0 + 2x + -2x
10 + 31x + -5x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
10 + 31x + -5x2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-2 + -6.2x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -6.2x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -6.2x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -6.2x + x2 = 0 + 2
-6.2x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-6.2x + x2 = 2

The x term is -6.2x.  Take half its coefficient (-3.1).
Square it (9.61) and add it to both sides.

Add '9.61' to each side of the equation.
-6.2x + 9.61 + x2 = 2 + 9.61

Reorder the terms:
9.61 + -6.2x + x2 = 2 + 9.61

Combine like terms: 2 + 9.61 = 11.61
9.61 + -6.2x + x2 = 11.61

Factor a perfect square on the left side:
(x + -3.1)(x + -3.1) = 11.61

Calculate the square root of the right side: 3.407345007

Break this problem into two subproblems by setting 
(x + -3.1) equal to 3.407345007 and -3.407345007.

Subproblem 1

x + -3.1 = 3.407345007 Simplifying x + -3.1 = 3.407345007 Reorder the terms: -3.1 + x = 3.407345007 Solving -3.1 + x = 3.407345007 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.1' to each side of the equation. -3.1 + 3.1 + x = 3.407345007 + 3.1 Combine like terms: -3.1 + 3.1 = 0.0 0.0 + x = 3.407345007 + 3.1 x = 3.407345007 + 3.1 Combine like terms: 3.407345007 + 3.1 = 6.507345007 x = 6.507345007 Simplifying x = 6.507345007

Subproblem 2

x + -3.1 = -3.407345007 Simplifying x + -3.1 = -3.407345007 Reorder the terms: -3.1 + x = -3.407345007 Solving -3.1 + x = -3.407345007 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.1' to each side of the equation. -3.1 + 3.1 + x = -3.407345007 + 3.1 Combine like terms: -3.1 + 3.1 = 0.0 0.0 + x = -3.407345007 + 3.1 x = -3.407345007 + 3.1 Combine like terms: -3.407345007 + 3.1 = -0.307345007 x = -0.307345007 Simplifying x = -0.307345007

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.507345007, -0.307345007}

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