7x^2-266x+2518=0

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Solution for 7x^2-266x+2518=0 equation:


Simplifying
7x2 + -266x + 2518 = 0

Reorder the terms:
2518 + -266x + 7x2 = 0

Solving
2518 + -266x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
359.7142857 + -38x + x2 = 0

Move the constant term to the right:

Add '-359.7142857' to each side of the equation.
359.7142857 + -38x + -359.7142857 + x2 = 0 + -359.7142857

Reorder the terms:
359.7142857 + -359.7142857 + -38x + x2 = 0 + -359.7142857

Combine like terms: 359.7142857 + -359.7142857 = 0.0000000
0.0000000 + -38x + x2 = 0 + -359.7142857
-38x + x2 = 0 + -359.7142857

Combine like terms: 0 + -359.7142857 = -359.7142857
-38x + x2 = -359.7142857

The x term is -38x.  Take half its coefficient (-19).
Square it (361) and add it to both sides.

Add '361' to each side of the equation.
-38x + 361 + x2 = -359.7142857 + 361

Reorder the terms:
361 + -38x + x2 = -359.7142857 + 361

Combine like terms: -359.7142857 + 361 = 1.2857143
361 + -38x + x2 = 1.2857143

Factor a perfect square on the left side:
(x + -19)(x + -19) = 1.2857143

Calculate the square root of the right side: 1.133893425

Break this problem into two subproblems by setting 
(x + -19) equal to 1.133893425 and -1.133893425.

Subproblem 1

x + -19 = 1.133893425 Simplifying x + -19 = 1.133893425 Reorder the terms: -19 + x = 1.133893425 Solving -19 + x = 1.133893425 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + x = 1.133893425 + 19 Combine like terms: -19 + 19 = 0 0 + x = 1.133893425 + 19 x = 1.133893425 + 19 Combine like terms: 1.133893425 + 19 = 20.133893425 x = 20.133893425 Simplifying x = 20.133893425

Subproblem 2

x + -19 = -1.133893425 Simplifying x + -19 = -1.133893425 Reorder the terms: -19 + x = -1.133893425 Solving -19 + x = -1.133893425 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + x = -1.133893425 + 19 Combine like terms: -19 + 19 = 0 0 + x = -1.133893425 + 19 x = -1.133893425 + 19 Combine like terms: -1.133893425 + 19 = 17.866106575 x = 17.866106575 Simplifying x = 17.866106575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {20.133893425, 17.866106575}

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