X^2+11X-50=0

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Solution for X^2+11X-50=0 equation:


Simplifying
X2 + 11X + -50 = 0

Reorder the terms:
-50 + 11X + X2 = 0

Solving
-50 + 11X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + 11X + 50 + X2 = 0 + 50

Reorder the terms:
-50 + 50 + 11X + X2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 11X + X2 = 0 + 50
11X + X2 = 0 + 50

Combine like terms: 0 + 50 = 50
11X + X2 = 50

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 = 50 + 30.25

Reorder the terms:
30.25 + 11X + X2 = 50 + 30.25

Combine like terms: 50 + 30.25 = 80.25
30.25 + 11X + X2 = 80.25

Factor a perfect square on the left side:
(X + 5.5)(X + 5.5) = 80.25

Calculate the square root of the right side: 8.958236434

Break this problem into two subproblems by setting 
(X + 5.5) equal to 8.958236434 and -8.958236434.

Subproblem 1

X + 5.5 = 8.958236434 Simplifying X + 5.5 = 8.958236434 Reorder the terms: 5.5 + X = 8.958236434 Solving 5.5 + X = 8.958236434 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 = 8.958236434 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + X = 8.958236434 + -5.5 X = 8.958236434 + -5.5 Combine like terms: 8.958236434 + -5.5 = 3.458236434 X = 3.458236434 Simplifying X = 3.458236434

Subproblem 2

X + 5.5 = -8.958236434 Simplifying X + 5.5 = -8.958236434 Reorder the terms: 5.5 + X = -8.958236434 Solving 5.5 + X = -8.958236434 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 = -8.958236434 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + X = -8.958236434 + -5.5 X = -8.958236434 + -5.5 Combine like terms: -8.958236434 + -5.5 = -14.458236434 X = -14.458236434 Simplifying X = -14.458236434

Solution

The solution to the problem is based on the solutions from the subproblems. X = {3.458236434, -14.458236434}

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