x^2-64x+620=0

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Solution for x^2-64x+620=0 equation:


Simplifying
x2 + -64x + 620 = 0

Reorder the terms:
620 + -64x + x2 = 0

Solving
620 + -64x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-620' to each side of the equation.
620 + -64x + -620 + x2 = 0 + -620

Reorder the terms:
620 + -620 + -64x + x2 = 0 + -620

Combine like terms: 620 + -620 = 0
0 + -64x + x2 = 0 + -620
-64x + x2 = 0 + -620

Combine like terms: 0 + -620 = -620
-64x + x2 = -620

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 = -620 + 1024

Reorder the terms:
1024 + -64x + x2 = -620 + 1024

Combine like terms: -620 + 1024 = 404
1024 + -64x + x2 = 404

Factor a perfect square on the left side:
(x + -32)(x + -32) = 404

Calculate the square root of the right side: 20.099751242

Break this problem into two subproblems by setting 
(x + -32) equal to 20.099751242 and -20.099751242.

Subproblem 1

x + -32 = 20.099751242 Simplifying x + -32 = 20.099751242 Reorder the terms: -32 + x = 20.099751242 Solving -32 + x = 20.099751242 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 = 20.099751242 + 32 Combine like terms: -32 + 32 = 0 0 + x = 20.099751242 + 32 x = 20.099751242 + 32 Combine like terms: 20.099751242 + 32 = 52.099751242 x = 52.099751242 Simplifying x = 52.099751242

Subproblem 2

x + -32 = -20.099751242 Simplifying x + -32 = -20.099751242 Reorder the terms: -32 + x = -20.099751242 Solving -32 + x = -20.099751242 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 = -20.099751242 + 32 Combine like terms: -32 + 32 = 0 0 + x = -20.099751242 + 32 x = -20.099751242 + 32 Combine like terms: -20.099751242 + 32 = 11.900248758 x = 11.900248758 Simplifying x = 11.900248758

Solution

The solution to the problem is based on the solutions from the subproblems. x = {52.099751242, 11.900248758}

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