№1 1) 2a2+25a/a3+125 - a2/a2-5a+25= 2) x/xy-5y2 - 15x-25y/x2-25y2= №2 Разделите: x2-36/x2-3x : x2+6x/x2-9= №3 ( xy/x2-y2 - y-x/2x+2y) • x+y/3y - x2/3xy-3y2=