X^2-31X+60=0

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Solution for X^2-31X+60=0 equation:


Simplifying
X2 + -31X + 60 = 0

Reorder the terms:
60 + -31X + X2 = 0

Solving
60 + -31X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '-60' to each side of the equation.
60 + -31X + -60 + X2 = 0 + -60

Reorder the terms:
60 + -60 + -31X + X2 = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -31X + X2 = 0 + -60
-31X + X2 = 0 + -60

Combine like terms: 0 + -60 = -60
-31X + X2 = -60

The X term is -31X.  Take half its coefficient (-15.5).
Square it (240.25) and add it to both sides.

Add '240.25' to each side of the equation.
-31X + 240.25 + X2 = -60 + 240.25

Reorder the terms:
240.25 + -31X + X2 = -60 + 240.25

Combine like terms: -60 + 240.25 = 180.25
240.25 + -31X + X2 = 180.25

Factor a perfect square on the left side:
(X + -15.5)(X + -15.5) = 180.25

Calculate the square root of the right side: 13.425721582

Break this problem into two subproblems by setting 
(X + -15.5) equal to 13.425721582 and -13.425721582.

Subproblem 1

X + -15.5 = 13.425721582 Simplifying X + -15.5 = 13.425721582 Reorder the terms: -15.5 + X = 13.425721582 Solving -15.5 + X = 13.425721582 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '15.5' to each side of the equation. -15.5 + 15.5 + X = 13.425721582 + 15.5 Combine like terms: -15.5 + 15.5 = 0.0 0.0 + X = 13.425721582 + 15.5 X = 13.425721582 + 15.5 Combine like terms: 13.425721582 + 15.5 = 28.925721582 X = 28.925721582 Simplifying X = 28.925721582

Subproblem 2

X + -15.5 = -13.425721582 Simplifying X + -15.5 = -13.425721582 Reorder the terms: -15.5 + X = -13.425721582 Solving -15.5 + X = -13.425721582 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '15.5' to each side of the equation. -15.5 + 15.5 + X = -13.425721582 + 15.5 Combine like terms: -15.5 + 15.5 = 0.0 0.0 + X = -13.425721582 + 15.5 X = -13.425721582 + 15.5 Combine like terms: -13.425721582 + 15.5 = 2.074278418 X = 2.074278418 Simplifying X = 2.074278418

Solution

The solution to the problem is based on the solutions from the subproblems. X = {28.925721582, 2.074278418}

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