-21
11
44
1, 2 and 3
85
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).
The 4 numbers that give the same result when added or multiplied together are 1, 2, 3, and 6. When added together, they equal 12 (1 + 2 + 3 + 6 = 12), and when multiplied together, they also equal 12 (1 x 2 x 3 x 6 = 12). This is an example of a set of numbers that satisfy the condition of having the same sum and product.
59
The three numbers that give the same result when multiplied together and added together are 1, 2, and 3. When you multiply them, (1 \times 2 \times 3 = 6), and when you add them, (1 + 2 + 3 = 6) as well. Thus, both operations yield the same result of 6.
8 & 16
8 and 9
-4 and -4
(x - 1)(x + 3) Think of 2 numbers which added together give +2 and which multiplied together give -3