11X^2-4.6X-7.3=0

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Solution for 11X^2-4.6X-7.3=0 equation:


Simplifying
11X2 + -4.6X + -7.3 = 0

Reorder the terms:
-7.3 + -4.6X + 11X2 = 0

Solving
-7.3 + -4.6X + 11X2 = 0

Solving for variable 'X'.

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

Divide each side by '11'.
-0.6636363636 + -0.4181818182X + X2 = 0

Move the constant term to the right:

Add '0.6636363636' to each side of the equation.
-0.6636363636 + -0.4181818182X + 0.6636363636 + X2 = 0 + 0.6636363636

Reorder the terms:
-0.6636363636 + 0.6636363636 + -0.4181818182X + X2 = 0 + 0.6636363636

Combine like terms: -0.6636363636 + 0.6636363636 = 0.0000000000
0.0000000000 + -0.4181818182X + X2 = 0 + 0.6636363636
-0.4181818182X + X2 = 0 + 0.6636363636

Combine like terms: 0 + 0.6636363636 = 0.6636363636
-0.4181818182X + X2 = 0.6636363636

The X term is -0.4181818182X.  Take half its coefficient (-0.2090909091).
Square it (0.04371900827) and add it to both sides.

Add '0.04371900827' to each side of the equation.
-0.4181818182X + 0.04371900827 + X2 = 0.6636363636 + 0.04371900827

Reorder the terms:
0.04371900827 + -0.4181818182X + X2 = 0.6636363636 + 0.04371900827

Combine like terms: 0.6636363636 + 0.04371900827 = 0.70735537187
0.04371900827 + -0.4181818182X + X2 = 0.70735537187

Factor a perfect square on the left side:
(X + -0.2090909091)(X + -0.2090909091) = 0.70735537187

Calculate the square root of the right side: 0.841044215

Break this problem into two subproblems by setting 
(X + -0.2090909091) equal to 0.841044215 and -0.841044215.

Subproblem 1

X + -0.2090909091 = 0.841044215 Simplifying X + -0.2090909091 = 0.841044215 Reorder the terms: -0.2090909091 + X = 0.841044215 Solving -0.2090909091 + X = 0.841044215 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.2090909091' to each side of the equation. -0.2090909091 + 0.2090909091 + X = 0.841044215 + 0.2090909091 Combine like terms: -0.2090909091 + 0.2090909091 = 0.0000000000 0.0000000000 + X = 0.841044215 + 0.2090909091 X = 0.841044215 + 0.2090909091 Combine like terms: 0.841044215 + 0.2090909091 = 1.0501351241 X = 1.0501351241 Simplifying X = 1.0501351241

Subproblem 2

X + -0.2090909091 = -0.841044215 Simplifying X + -0.2090909091 = -0.841044215 Reorder the terms: -0.2090909091 + X = -0.841044215 Solving -0.2090909091 + X = -0.841044215 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.2090909091' to each side of the equation. -0.2090909091 + 0.2090909091 + X = -0.841044215 + 0.2090909091 Combine like terms: -0.2090909091 + 0.2090909091 = 0.0000000000 0.0000000000 + X = -0.841044215 + 0.2090909091 X = -0.841044215 + 0.2090909091 Combine like terms: -0.841044215 + 0.2090909091 = -0.6319533059 X = -0.6319533059 Simplifying X = -0.6319533059

Solution

The solution to the problem is based on the solutions from the subproblems. X = {1.0501351241, -0.6319533059}

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