9 and 10 have to be the numbers, but 9 would have to be minus to give +1 (therefore causing the 90 to be -90). i.e. there are no two numbers that can satisfy this question due to their signs
The two numbers that multiply to 90 and add to 1 are 10 and -9. When multiplied, 10 * -9 equals -90, and when added, 10 + (-9) equals 1.
It is not possible to multiply two prime numbers and get 90. You can add 43 and 47.
-117
111
-9 and 10
113
-100
133
18 and -5
-117
-95
-117