Question 365082
(4 square root of 2, 3 square root of 5) and (-2 square root of 2, 5 square root of 5)
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(4*sqrt(2),3*sqrt(5)) and (-2*sqrt(2),5*sqrt(5))
diffy = 2sqrt(5)
diffx = 6sqrt(2)
{{{d = sqrt(diffy^2 + diffx^2) = sqrt(20 + 72)}}}
d = sqrt(92)
d =~ 9.59