The factor pairs of -30 are (-30 , 1), (-15 , 2), (-10 , 3), (-6 , 5), (30 , -1),
(15 , -2), (10 , -3), and (6 , -5).
None of them add up to 5. So we know that the answer to the question
can't be whole numbers.
With some stronger tools, we find that (8.5208) and (-3.5208) come
pretty close to doing the job.
it is not possible.
24 and 5
4 1
4 and 5
The factor pairs of 15 are (15, 1) (5, 3) Neither of them adds up to eight. There is no integral solution to this problem.
it is not possible.
24 and 5
-12 and +5
1
-5 and -1
-377
23
They are: 3+2 = 5 and 3^2 = 9
1
nothing
9 ones and a 5
16