3a+2b=3*0+2*2=4
3a+2b=3*0+2*1=2
3a+2b=3*1+2*2=7
3a+2b=3*1+2*1=5
a-b=0-2=-2
a-b=0-1=-1
a-b=1-2=-1
a-b=1-1=0
a*b при a=17296 и b=8 = 138368
a*b при а=137009 и b=7 = 959063
1) y+ y/y-6 = y(y-6)+y/y-6
2) 2y-12/y²-25 • y(y-6)+y = 2(y-6)y(y-6+1)/(y+5)(y-5)(y-6) = 2y(y-6+1)/(y+5)(y-5) = 2y²-12y+2y/y²-25 = 2y²-10y/y²-25 = 2y/y+5