x^2-17x+64=0

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Solution for x^2-17x+64=0 equation:


Simplifying
x2 + -17x + 64 = 0

Reorder the terms:
64 + -17x + x2 = 0

Solving
64 + -17x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-64' to each side of the equation.
64 + -17x + -64 + x2 = 0 + -64

Reorder the terms:
64 + -64 + -17x + x2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -17x + x2 = 0 + -64
-17x + x2 = 0 + -64

Combine like terms: 0 + -64 = -64
-17x + x2 = -64

The x term is -17x.  Take half its coefficient (-8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
-17x + 72.25 + x2 = -64 + 72.25

Reorder the terms:
72.25 + -17x + x2 = -64 + 72.25

Combine like terms: -64 + 72.25 = 8.25
72.25 + -17x + x2 = 8.25

Factor a perfect square on the left side:
(x + -8.5)(x + -8.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + -8.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + -8.5 = 2.872281323 Simplifying x + -8.5 = 2.872281323 Reorder the terms: -8.5 + x = 2.872281323 Solving -8.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + x = 2.872281323 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + x = 2.872281323 + 8.5 x = 2.872281323 + 8.5 Combine like terms: 2.872281323 + 8.5 = 11.372281323 x = 11.372281323 Simplifying x = 11.372281323

Subproblem 2

x + -8.5 = -2.872281323 Simplifying x + -8.5 = -2.872281323 Reorder the terms: -8.5 + x = -2.872281323 Solving -8.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + x = -2.872281323 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + x = -2.872281323 + 8.5 x = -2.872281323 + 8.5 Combine like terms: -2.872281323 + 8.5 = 5.627718677 x = 5.627718677 Simplifying x = 5.627718677

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.372281323, 5.627718677}

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