2x^2-46x+57=0

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Solution for 2x^2-46x+57=0 equation:


Simplifying
2x2 + -46x + 57 = 0

Reorder the terms:
57 + -46x + 2x2 = 0

Solving
57 + -46x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
28.5 + -23x + x2 = 0

Move the constant term to the right:

Add '-28.5' to each side of the equation.
28.5 + -23x + -28.5 + x2 = 0 + -28.5

Reorder the terms:
28.5 + -28.5 + -23x + x2 = 0 + -28.5

Combine like terms: 28.5 + -28.5 = 0.0
0.0 + -23x + x2 = 0 + -28.5
-23x + x2 = 0 + -28.5

Combine like terms: 0 + -28.5 = -28.5
-23x + x2 = -28.5

The x term is -23x.  Take half its coefficient (-11.5).
Square it (132.25) and add it to both sides.

Add '132.25' to each side of the equation.
-23x + 132.25 + x2 = -28.5 + 132.25

Reorder the terms:
132.25 + -23x + x2 = -28.5 + 132.25

Combine like terms: -28.5 + 132.25 = 103.75
132.25 + -23x + x2 = 103.75

Factor a perfect square on the left side:
(x + -11.5)(x + -11.5) = 103.75

Calculate the square root of the right side: 10.185774394

Break this problem into two subproblems by setting 
(x + -11.5) equal to 10.185774394 and -10.185774394.

Subproblem 1

x + -11.5 = 10.185774394 Simplifying x + -11.5 = 10.185774394 Reorder the terms: -11.5 + x = 10.185774394 Solving -11.5 + x = 10.185774394 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + x = 10.185774394 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = 10.185774394 + 11.5 x = 10.185774394 + 11.5 Combine like terms: 10.185774394 + 11.5 = 21.685774394 x = 21.685774394 Simplifying x = 21.685774394

Subproblem 2

x + -11.5 = -10.185774394 Simplifying x + -11.5 = -10.185774394 Reorder the terms: -11.5 + x = -10.185774394 Solving -11.5 + x = -10.185774394 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + x = -10.185774394 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = -10.185774394 + 11.5 x = -10.185774394 + 11.5 Combine like terms: -10.185774394 + 11.5 = 1.314225606 x = 1.314225606 Simplifying x = 1.314225606

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.685774394, 1.314225606}

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