5x(x-6)=-6

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Solution for 5x(x-6)=-6 equation:


Simplifying
5x(x + -6) = -6

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

Solving
-30x + 5x2 = -6

Solving for variable 'x'.

Reorder the terms:
6 + -30x + 5x2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + -30x + 5x2 = 0

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

Divide each side by '5'.
1.2 + -6x + x2 = 0

Move the constant term to the right:

Add '-1.2' to each side of the equation.
1.2 + -6x + -1.2 + x2 = 0 + -1.2

Reorder the terms:
1.2 + -1.2 + -6x + x2 = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -6x + x2 = 0 + -1.2
-6x + x2 = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
-6x + x2 = -1.2

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -1.2 + 9

Reorder the terms:
9 + -6x + x2 = -1.2 + 9

Combine like terms: -1.2 + 9 = 7.8
9 + -6x + x2 = 7.8

Factor a perfect square on the left side:
(x + -3)(x + -3) = 7.8

Calculate the square root of the right side: 2.792848009

Break this problem into two subproblems by setting 
(x + -3) equal to 2.792848009 and -2.792848009.

Subproblem 1

x + -3 = 2.792848009 Simplifying x + -3 = 2.792848009 Reorder the terms: -3 + x = 2.792848009 Solving -3 + x = 2.792848009 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.792848009 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.792848009 + 3 x = 2.792848009 + 3 Combine like terms: 2.792848009 + 3 = 5.792848009 x = 5.792848009 Simplifying x = 5.792848009

Subproblem 2

x + -3 = -2.792848009 Simplifying x + -3 = -2.792848009 Reorder the terms: -3 + x = -2.792848009 Solving -3 + x = -2.792848009 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.792848009 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.792848009 + 3 x = -2.792848009 + 3 Combine like terms: -2.792848009 + 3 = 0.207151991 x = 0.207151991 Simplifying x = 0.207151991

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.792848009, 0.207151991}

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