x^2-11x-34=0

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Solution for x^2-11x-34=0 equation:


Simplifying
x2 + -11x + -34 = 0

Reorder the terms:
-34 + -11x + x2 = 0

Solving
-34 + -11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '34' to each side of the equation.
-34 + -11x + 34 + x2 = 0 + 34

Reorder the terms:
-34 + 34 + -11x + x2 = 0 + 34

Combine like terms: -34 + 34 = 0
0 + -11x + x2 = 0 + 34
-11x + x2 = 0 + 34

Combine like terms: 0 + 34 = 34
-11x + x2 = 34

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = 34 + 30.25

Reorder the terms:
30.25 + -11x + x2 = 34 + 30.25

Combine like terms: 34 + 30.25 = 64.25
30.25 + -11x + x2 = 64.25

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 64.25

Calculate the square root of the right side: 8.015609771

Break this problem into two subproblems by setting 
(x + -5.5) equal to 8.015609771 and -8.015609771.

Subproblem 1

x + -5.5 = 8.015609771 Simplifying x + -5.5 = 8.015609771 Reorder the terms: -5.5 + x = 8.015609771 Solving -5.5 + x = 8.015609771 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 8.015609771 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 8.015609771 + 5.5 x = 8.015609771 + 5.5 Combine like terms: 8.015609771 + 5.5 = 13.515609771 x = 13.515609771 Simplifying x = 13.515609771

Subproblem 2

x + -5.5 = -8.015609771 Simplifying x + -5.5 = -8.015609771 Reorder the terms: -5.5 + x = -8.015609771 Solving -5.5 + x = -8.015609771 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -8.015609771 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -8.015609771 + 5.5 x = -8.015609771 + 5.5 Combine like terms: -8.015609771 + 5.5 = -2.515609771 x = -2.515609771 Simplifying x = -2.515609771

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.515609771, -2.515609771}

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