1 and 11
The two 2-digit numbers that multiply to make 176 are 11 and 16. When you multiply 11 by 16, you get 176 (11 × 16 = 176). These are the only two-digit integers that satisfy this condition.
The two numbers that add to -11 and multiply to 19 are -10 and -1. When you add them together, -10 + (-1) equals -11. When you multiply them, -10 × -1 equals 10, not 19. Therefore, there are no two real numbers that satisfy both conditions simultaneously.
21
-145
1 and 11
11 and 11
-11
21
The two numbers that multiply to get 22 are 2 and 11. This is because 2 multiplied by 11 equals 22. These two numbers are the only pair of integers that multiply to give 22, as 22 is a prime number and cannot be factored into other integers.
7 x 11
11x5
-31
51
Among the real whole numbers, you only have two choices: -1 x 11 and 1 x -11
121 ×1
-11