169
The complex conjugate pair, 9.5 ± 7.7298i where iis the imaginary square root of -1.
The sum is the total when numbers are added together, the product is the total when they are multiplied.
11
5+5 By quadratic equation the two numbers (roots) are: 8.872983346 and 1.127016653 Added together = 10 Multiplied = 10
The only integer solution to this question is 2 and 2 which give 4 when they are added together or multiplied together. If you do not limit yourself to integers, then any pair of numbers, x and x/(x-1) will fit the bill where x not = 1. Their sum and product are x^2 / (x-1).
1, 2 and 3
-1097
Any three numbers can be added or multiplied together. For example, 2 + 3.3 + pi = 5.3 + pi = 8.4416 (approx) and 2 * 3.3 * pi = 6.6pi
The way in which numbers are grouped when added or multiplied does not change the sum or product.
One, two, and three.
26
The answer is 1.127 and 8.873 (approx).
Two (or four) digits added together cannot equal 42. Two-digit numbers multiplied together cannot equal 82.