-x^2+6x=-38

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Solution for -x^2+6x=-38 equation:


Simplifying
-1x2 + 6x = -38

Reorder the terms:
6x + -1x2 = -38

Solving
6x + -1x2 = -38

Solving for variable 'x'.

Reorder the terms:
38 + 6x + -1x2 = -38 + 38

Combine like terms: -38 + 38 = 0
38 + 6x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-38 + -6x + x2 = 0

Move the constant term to the right:

Add '38' to each side of the equation.
-38 + -6x + 38 + x2 = 0 + 38

Reorder the terms:
-38 + 38 + -6x + x2 = 0 + 38

Combine like terms: -38 + 38 = 0
0 + -6x + x2 = 0 + 38
-6x + x2 = 0 + 38

Combine like terms: 0 + 38 = 38
-6x + x2 = 38

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 = 38 + 9

Reorder the terms:
9 + -6x + x2 = 38 + 9

Combine like terms: 38 + 9 = 47
9 + -6x + x2 = 47

Factor a perfect square on the left side:
(x + -3)(x + -3) = 47

Calculate the square root of the right side: 6.8556546

Break this problem into two subproblems by setting 
(x + -3) equal to 6.8556546 and -6.8556546.

Subproblem 1

x + -3 = 6.8556546 Simplifying x + -3 = 6.8556546 Reorder the terms: -3 + x = 6.8556546 Solving -3 + x = 6.8556546 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 = 6.8556546 + 3 Combine like terms: -3 + 3 = 0 0 + x = 6.8556546 + 3 x = 6.8556546 + 3 Combine like terms: 6.8556546 + 3 = 9.8556546 x = 9.8556546 Simplifying x = 9.8556546

Subproblem 2

x + -3 = -6.8556546 Simplifying x + -3 = -6.8556546 Reorder the terms: -3 + x = -6.8556546 Solving -3 + x = -6.8556546 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 = -6.8556546 + 3 Combine like terms: -3 + 3 = 0 0 + x = -6.8556546 + 3 x = -6.8556546 + 3 Combine like terms: -6.8556546 + 3 = -3.8556546 x = -3.8556546 Simplifying x = -3.8556546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.8556546, -3.8556546}

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