x^2-80x+4000=0

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Solution for x^2-80x+4000=0 equation:


Simplifying
x2 + -80x + 4000 = 0

Reorder the terms:
4000 + -80x + x2 = 0

Solving
4000 + -80x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-4000' to each side of the equation.
4000 + -80x + -4000 + x2 = 0 + -4000

Reorder the terms:
4000 + -4000 + -80x + x2 = 0 + -4000

Combine like terms: 4000 + -4000 = 0
0 + -80x + x2 = 0 + -4000
-80x + x2 = 0 + -4000

Combine like terms: 0 + -4000 = -4000
-80x + x2 = -4000

The x term is -80x.  Take half its coefficient (-40).
Square it (1600) and add it to both sides.

Add '1600' to each side of the equation.
-80x + 1600 + x2 = -4000 + 1600

Reorder the terms:
1600 + -80x + x2 = -4000 + 1600

Combine like terms: -4000 + 1600 = -2400
1600 + -80x + x2 = -2400

Factor a perfect square on the left side:
(x + -40)(x + -40) = -2400

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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