P+q/p-q - p-q/p+q при p=2; q=корень из 3

(p+q) / (p-q) - (p-q) / (p+q) = ((p+q) (p+q) - (p-q) (p-q)) / (p-q) (p+q) =

= (p²+2pq+q²-p²+2pq-q²) / (p²-q²) = 4pq / (p²-q²)

p=2, q=√3 ≡ 4.2.√3 / (2² - (√3) ²) = 8.√3 / (4-3) = 8.√3