56-31.3*x+x^2=0

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Solution for 56-31.3*x+x^2=0 equation:


Simplifying
56 + -31.3x + x2 = 0

Solving
56 + -31.3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-56' to each side of the equation.
56 + -31.3x + -56 + x2 = 0 + -56

Reorder the terms:
56 + -56 + -31.3x + x2 = 0 + -56

Combine like terms: 56 + -56 = 0
0 + -31.3x + x2 = 0 + -56
-31.3x + x2 = 0 + -56

Combine like terms: 0 + -56 = -56
-31.3x + x2 = -56

The x term is -31.3x.  Take half its coefficient (-15.65).
Square it (244.9225) and add it to both sides.

Add '244.9225' to each side of the equation.
-31.3x + 244.9225 + x2 = -56 + 244.9225

Reorder the terms:
244.9225 + -31.3x + x2 = -56 + 244.9225

Combine like terms: -56 + 244.9225 = 188.9225
244.9225 + -31.3x + x2 = 188.9225

Factor a perfect square on the left side:
(x + -15.65)(x + -15.65) = 188.9225

Calculate the square root of the right side: 13.744908148

Break this problem into two subproblems by setting 
(x + -15.65) equal to 13.744908148 and -13.744908148.

Subproblem 1

x + -15.65 = 13.744908148 Simplifying x + -15.65 = 13.744908148 Reorder the terms: -15.65 + x = 13.744908148 Solving -15.65 + x = 13.744908148 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15.65' to each side of the equation. -15.65 + 15.65 + x = 13.744908148 + 15.65 Combine like terms: -15.65 + 15.65 = 0.00 0.00 + x = 13.744908148 + 15.65 x = 13.744908148 + 15.65 Combine like terms: 13.744908148 + 15.65 = 29.394908148 x = 29.394908148 Simplifying x = 29.394908148

Subproblem 2

x + -15.65 = -13.744908148 Simplifying x + -15.65 = -13.744908148 Reorder the terms: -15.65 + x = -13.744908148 Solving -15.65 + x = -13.744908148 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15.65' to each side of the equation. -15.65 + 15.65 + x = -13.744908148 + 15.65 Combine like terms: -15.65 + 15.65 = 0.00 0.00 + x = -13.744908148 + 15.65 x = -13.744908148 + 15.65 Combine like terms: -13.744908148 + 15.65 = 1.905091852 x = 1.905091852 Simplifying x = 1.905091852

Solution

The solution to the problem is based on the solutions from the subproblems. x = {29.394908148, 1.905091852}

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