Răspuns :
a) 30 = 1×30 =2×15 =3 ×10 = 5×6
S min = 5+6 =11
S max = =1+30 =31
b) a+b =14
14 = 1+13 = 2+12 = 3+11 = 4+10 = 5+9 = 6+8 = 7+7
P min = 1×13 = 13
P max = 7×7 = 49
S min = 5+6 =11
S max = =1+30 =31
b) a+b =14
14 = 1+13 = 2+12 = 3+11 = 4+10 = 5+9 = 6+8 = 7+7
P min = 1×13 = 13
P max = 7×7 = 49