x(x-6)=60

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Solution for x(x-6)=60 equation:


Simplifying
x(x + -6) = 60

Reorder the terms:
x(-6 + x) = 60
(-6 * x + x * x) = 60
(-6x + x2) = 60

Solving
-6x + x2 = 60

Solving for variable 'x'.

Reorder the terms:
-60 + -6x + x2 = 60 + -60

Combine like terms: 60 + -60 = 0
-60 + -6x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '60' to each side of the equation.
-60 + -6x + 60 + x2 = 0 + 60

Reorder the terms:
-60 + 60 + -6x + x2 = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -6x + x2 = 0 + 60
-6x + x2 = 0 + 60

Combine like terms: 0 + 60 = 60
-6x + x2 = 60

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 = 60 + 9

Reorder the terms:
9 + -6x + x2 = 60 + 9

Combine like terms: 60 + 9 = 69
9 + -6x + x2 = 69

Factor a perfect square on the left side:
(x + -3)(x + -3) = 69

Calculate the square root of the right side: 8.306623863

Break this problem into two subproblems by setting 
(x + -3) equal to 8.306623863 and -8.306623863.

Subproblem 1

x + -3 = 8.306623863 Simplifying x + -3 = 8.306623863 Reorder the terms: -3 + x = 8.306623863 Solving -3 + x = 8.306623863 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 = 8.306623863 + 3 Combine like terms: -3 + 3 = 0 0 + x = 8.306623863 + 3 x = 8.306623863 + 3 Combine like terms: 8.306623863 + 3 = 11.306623863 x = 11.306623863 Simplifying x = 11.306623863

Subproblem 2

x + -3 = -8.306623863 Simplifying x + -3 = -8.306623863 Reorder the terms: -3 + x = -8.306623863 Solving -3 + x = -8.306623863 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 = -8.306623863 + 3 Combine like terms: -3 + 3 = 0 0 + x = -8.306623863 + 3 x = -8.306623863 + 3 Combine like terms: -8.306623863 + 3 = -5.306623863 x = -5.306623863 Simplifying x = -5.306623863

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.306623863, -5.306623863}

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