x^2-64x+168=0

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Solution for x^2-64x+168=0 equation:


Simplifying
x2 + -64x + 168 = 0

Reorder the terms:
168 + -64x + x2 = 0

Solving
168 + -64x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-168' to each side of the equation.
168 + -64x + -168 + x2 = 0 + -168

Reorder the terms:
168 + -168 + -64x + x2 = 0 + -168

Combine like terms: 168 + -168 = 0
0 + -64x + x2 = 0 + -168
-64x + x2 = 0 + -168

Combine like terms: 0 + -168 = -168
-64x + x2 = -168

The x term is -64x.  Take half its coefficient (-32).
Square it (1024) and add it to both sides.

Add '1024' to each side of the equation.
-64x + 1024 + x2 = -168 + 1024

Reorder the terms:
1024 + -64x + x2 = -168 + 1024

Combine like terms: -168 + 1024 = 856
1024 + -64x + x2 = 856

Factor a perfect square on the left side:
(x + -32)(x + -32) = 856

Calculate the square root of the right side: 29.257477677

Break this problem into two subproblems by setting 
(x + -32) equal to 29.257477677 and -29.257477677.

Subproblem 1

x + -32 = 29.257477677 Simplifying x + -32 = 29.257477677 Reorder the terms: -32 + x = 29.257477677 Solving -32 + x = 29.257477677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32' to each side of the equation. -32 + 32 + x = 29.257477677 + 32 Combine like terms: -32 + 32 = 0 0 + x = 29.257477677 + 32 x = 29.257477677 + 32 Combine like terms: 29.257477677 + 32 = 61.257477677 x = 61.257477677 Simplifying x = 61.257477677

Subproblem 2

x + -32 = -29.257477677 Simplifying x + -32 = -29.257477677 Reorder the terms: -32 + x = -29.257477677 Solving -32 + x = -29.257477677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32' to each side of the equation. -32 + 32 + x = -29.257477677 + 32 Combine like terms: -32 + 32 = 0 0 + x = -29.257477677 + 32 x = -29.257477677 + 32 Combine like terms: -29.257477677 + 32 = 2.742522323 x = 2.742522323 Simplifying x = 2.742522323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {61.257477677, 2.742522323}

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