Răspuns :
1)
16 <=>8×8
26 <=>13×13
42 <=>21×21
50 <=>25×25
2)
a+b=15
a=8
b=7
a×b=56
3)
x+y+z=1
x×y×z=15
x=1
y=3
z=5
16 <=>8×8
26 <=>13×13
42 <=>21×21
50 <=>25×25
2)
a+b=15
a=8
b=7
a×b=56
3)
x+y+z=1
x×y×z=15
x=1
y=3
z=5