x^2-2x+720=0

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Solution for x^2-2x+720=0 equation:


Simplifying
x2 + -2x + 720 = 0

Reorder the terms:
720 + -2x + x2 = 0

Solving
720 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-720' to each side of the equation.
720 + -2x + -720 + x2 = 0 + -720

Reorder the terms:
720 + -720 + -2x + x2 = 0 + -720

Combine like terms: 720 + -720 = 0
0 + -2x + x2 = 0 + -720
-2x + x2 = 0 + -720

Combine like terms: 0 + -720 = -720
-2x + x2 = -720

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -720 + 1

Reorder the terms:
1 + -2x + x2 = -720 + 1

Combine like terms: -720 + 1 = -719
1 + -2x + x2 = -719

Factor a perfect square on the left side:
(x + -1)(x + -1) = -719

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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