x^2-10x+80=0

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Solution for x^2-10x+80=0 equation:


Simplifying
x2 + -10x + 80 = 0

Reorder the terms:
80 + -10x + x2 = 0

Solving
80 + -10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + -10x + -80 + x2 = 0 + -80

Reorder the terms:
80 + -80 + -10x + x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -10x + x2 = 0 + -80
-10x + x2 = 0 + -80

Combine like terms: 0 + -80 = -80
-10x + x2 = -80

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -80 + 25

Reorder the terms:
25 + -10x + x2 = -80 + 25

Combine like terms: -80 + 25 = -55
25 + -10x + x2 = -55

Factor a perfect square on the left side:
(x + -5)(x + -5) = -55

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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