Question

Urgent va rog dau coroana orice

Answer 1

Răspuns:

Explicație pas cu pas:

7)  7^2 + (7^39:7^34 + 7^31:7^26):7^4 =

7^2 +(7^5+7^5):7^4 =

7^2 + 2*7 = 49 +14 = 53

8) 4+3+n =3k

n = 3k -7

k = 3, 4, 5

n = 2, 5, 8

9)  3^30( 33 +21 +27) =

3^30*81 = (3^15*9)^2