s^2-16s+80=0

Solution for s^2-16s+80=0 equation:

Simplifying
s2 + -16s + 80 = 0

Reorder the terms:
80 + -16s + s2 = 0

Solving
80 + -16s + s2 = 0

Solving for variable 's'.

Begin completing the square.

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + -16s + -80 + s2 = 0 + -80

Reorder the terms:
80 + -80 + -16s + s2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -16s + s2 = 0 + -80
-16s + s2 = 0 + -80

Combine like terms: 0 + -80 = -80
-16s + s2 = -80

The s term is -16s.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16s + 64 + s2 = -80 + 64

Reorder the terms:
64 + -16s + s2 = -80 + 64

Combine like terms: -80 + 64 = -16
64 + -16s + s2 = -16

Factor a perfect square on the left side:
(s + -8)(s + -8) = -16

Can't calculate square root of the right side.

The solution to this equation could not be determined.