Ответы и объяснения

2013-06-06T11:00:14+00:00

x=8-y log15(ot(8-y))=1-lo15(ot y)    log15ot(8-y)+log15(ot (8-y)=log15 ot (15) poluchaem (8-y)y=15

y^2-8y+15=0    y1,2= (8+-2/)2  y1=3 y2=5  x1=5 x2=3