x^2-9x+11=-6

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Solution for x^2-9x+11=-6 equation:


Simplifying
x2 + -9x + 11 = -6

Reorder the terms:
11 + -9x + x2 = -6

Solving
11 + -9x + x2 = -6

Solving for variable 'x'.

Reorder the terms:
11 + 6 + -9x + x2 = -6 + 6

Combine like terms: 11 + 6 = 17
17 + -9x + x2 = -6 + 6

Combine like terms: -6 + 6 = 0
17 + -9x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + -9x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + -9x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -9x + x2 = 0 + -17
-9x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
-9x + x2 = -17

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = -17 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -17 + 20.25

Combine like terms: -17 + 20.25 = 3.25
20.25 + -9x + x2 = 3.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(x + -4.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + -4.5 = 1.802775638 Simplifying x + -4.5 = 1.802775638 Reorder the terms: -4.5 + x = 1.802775638 Solving -4.5 + x = 1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 1.802775638 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 1.802775638 + 4.5 x = 1.802775638 + 4.5 Combine like terms: 1.802775638 + 4.5 = 6.302775638 x = 6.302775638 Simplifying x = 6.302775638

Subproblem 2

x + -4.5 = -1.802775638 Simplifying x + -4.5 = -1.802775638 Reorder the terms: -4.5 + x = -1.802775638 Solving -4.5 + x = -1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -1.802775638 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -1.802775638 + 4.5 x = -1.802775638 + 4.5 Combine like terms: -1.802775638 + 4.5 = 2.697224362 x = 2.697224362 Simplifying x = 2.697224362

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.302775638, 2.697224362}

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