there are 5 solutions. Or 4
It consisting of three terms so it's trinomial
D = sqrt (x2 - x1)^2 + (y2 - y1)^2
(2,-3)...x1 = 2 and y1 = -3
(5,-4)...x2 = 5 and y2 = -4
now we sub and solve
d = sqrt (5 - 2)^2 + (-4 - (-3)^2)
d = sqrt (3^2 + (-1^2)
d = sqrt (9 + 1)
d = sqrt 10
d = 3.16 <==
