Răspuns
a/7=2/(2b+1)
a(2b+1)=7*2=14=>
a=1 2b+1=14 =>2b=13 b=13/2∉Z
a=2 2b+1=7 2b=7-1 2b=6 b=6/2=3
(2,3) solutie
a=7 2b+1=2 2b=2-1 2b=1 b=1/2∉Z
a=14 2b+1=1 2b=0 b=0
14,0) solutie
a=-1 2b+1=-14 2b=-15 b=_15/2∉Z
a=-2 2b+1=-7 => 2b=-8 b=-4
(-2, -4) solutie
a =-7 2b+1=-2 2b=-3 b=-3/2∉Z
a=-14 2b+1=-1 2b= -2 b=-1
(-14,-1) solitie
Explicație pas cu pas:
