318
273
-273
1 + i and 1 - i, where i is the imaginary number equal to the square root of -1
16 and -3 are the numbers which gives -48 when multiplied and 13 when added
17
273
The numbers are: 21 and -10
61
6 and 8 do.
-9 and 20.
28
-46
149
-136
The sum of three odd numbers is odd but 270 is even, therefore there are no three odd numbers that add to 270. Similarly the product of two of more odd numbers is odd but 270 is even, therefore there are no three odd numbers that multiply together to get 270.
-273
The numbers are: 6 -3 times the sq rt of 34 and 6 +3 times the sq rt of 34