As a product of its prime factors: 2*2*5 = 20
9 and 11.
The factor pairs of 20 are (20,1)(10,2)(5,4) None of them total -10 or differ by 10. -20 and 10 are factors of -20 that add up to -10.
4 and 11.
The numbers are 9 and 7
30, 60, and 90.
580
20
26
-70
41
20, 40, 60, 80, 100 and so on.
9 and 11.
2 and 10
-12.385165 and -1.614835
They are: 20, 40, 60, 80, 100 and 120
(6 + √20) ≈ 10.472 and (6 - √20) ≈ 1.528
41