а) (у + 3у) / (у - 3) = 4у / (у - 3)
б) (2/х + 5 + х + 5) / 5х = (2/х + 5х + х + 5) / 5х = (2 + 5х² + х + 5х) / 5х
в) (4/х + 4 - х) / (х - 4) = (4 - х² + 4х) / (х - 4)
г) (2p - q) / (p² + qp + p - 2q) = (2p - q) / (p(q + 1) + (p - 2)q) = (2p - q) / (pq + p + pq - 2q) = (2p - q) / (2pq + p - q)
а) (у + 3у) / (у - 3) = 4у / (у - 3)
б) (2/х + 5 + х + 5) / 5х = (2/х + 5х + х + 5) / 5х = (2 + 5х² + х + 5х) / 5х
в) (4/х + 4 - х) / (х - 4) = (4 - х² + 4х) / (х - 4)
г) (2p - q) / (p² + qp + p - 2q) = (2p - q) / (p(q + 1) + (p - 2)q) = (2p - q) / (pq + p + pq - 2q) = (2p - q) / (2pq + p - q)