2x^2-18x+41=x^2

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Solution for 2x^2-18x+41=x^2 equation:


Simplifying
2x2 + -18x + 41 = x2

Reorder the terms:
41 + -18x + 2x2 = x2

Solving
41 + -18x + 2x2 = x2

Solving for variable 'x'.

Combine like terms: 2x2 + -1x2 = 1x2
41 + -18x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
41 + -18x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-41' to each side of the equation.
41 + -18x + -41 + x2 = 0 + -41

Reorder the terms:
41 + -41 + -18x + x2 = 0 + -41

Combine like terms: 41 + -41 = 0
0 + -18x + x2 = 0 + -41
-18x + x2 = 0 + -41

Combine like terms: 0 + -41 = -41
-18x + x2 = -41

The x term is -18x.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18x + 81 + x2 = -41 + 81

Reorder the terms:
81 + -18x + x2 = -41 + 81

Combine like terms: -41 + 81 = 40
81 + -18x + x2 = 40

Factor a perfect square on the left side:
(x + -9)(x + -9) = 40

Calculate the square root of the right side: 6.32455532

Break this problem into two subproblems by setting 
(x + -9) equal to 6.32455532 and -6.32455532.

Subproblem 1

x + -9 = 6.32455532 Simplifying x + -9 = 6.32455532 Reorder the terms: -9 + x = 6.32455532 Solving -9 + x = 6.32455532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = 6.32455532 + 9 Combine like terms: -9 + 9 = 0 0 + x = 6.32455532 + 9 x = 6.32455532 + 9 Combine like terms: 6.32455532 + 9 = 15.32455532 x = 15.32455532 Simplifying x = 15.32455532

Subproblem 2

x + -9 = -6.32455532 Simplifying x + -9 = -6.32455532 Reorder the terms: -9 + x = -6.32455532 Solving -9 + x = -6.32455532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = -6.32455532 + 9 Combine like terms: -9 + 9 = 0 0 + x = -6.32455532 + 9 x = -6.32455532 + 9 Combine like terms: -6.32455532 + 9 = 2.67544468 x = 2.67544468 Simplifying x = 2.67544468

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.32455532, 2.67544468}

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