Нужна помощь! 1) 2/ x²-9 + 1/ x+3 2)2x/ x-4 - 5x-2/ x²-16
1) 2 =-------------- +1/х+3= (х-3)(х+3) 2+х-3 =---------------=(х-1)/(х²-9) х²-9 2) 2х =---------- - (5х-2)/(х-4)(х+4)= х-4 2х(х+4)-5х+2 =----------------= (х-4)(х+4) 2х²+8х-5х+2 =----------------= х²-16 2х²+3х+2 =---------------- х²-16