The local readers’ club has a set of 49 hardback books and a set of 21 paperbacks. each set can be divided equally among the club members. what is the greatest possible number of club members? 14 21 147 7

7

Step-by-step explanation:

Given : The number of hardback books in a set = 49

The number of paperbacks in a set =21

Since each set can be divided equally among the club members then to find the greatest possible number of club members, we need to find the greatest common factor of 49 and 21.

The prime factorization of 49 and 21 :-

We can see that the  greatest common factor of 49 and 21 =7

Thus, the greatest possible number of club members is 7

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i