Răspuns :
a,b-nr.
a+b=24 =>a=24-b
a²-b²=144
(24-b)²-b²=144
576-48b+b²-b²=144
-48b=144-576
-48b=-432 |:(-1)
48b=432
b=432:48
b=9
a=24-b
a=24-9
a=15
a+b=24 =>a=24-b
a²-b²=144
(24-b)²-b²=144
576-48b+b²-b²=144
-48b=144-576
-48b=-432 |:(-1)
48b=432
b=432:48
b=9
a=24-b
a=24-9
a=15