Question

calculati: (6+2^10:2^8)^7:10^5-9x10
(3^14x7)^2:3^26
10x{18^2:324+2x[(2^2x3)^15:(2^29x3^15)+1^24]}
Dau coroana + 15 puncte
Multumesc

Answer 1

(6+2^2)^7:10^5 - 90 = (6 + 4)^7 : 10^5 - 90 = 10^7:10^5 - 90 = 10^2 - 90 = 100 - 90 = 10
(3^14 x 7)^2 : 3^26 = 3^28 x 7^2 : 3^26 = 3^2 x 7^2 = 9 x 49 = 441
10x{18^2 : 18^2 + 2x [(2^30 x 3^15) : (2^29 x 3^15)+1]} =
= 10 x [1 + 2x (2+1)] = 10 x (1 + 2 x 3) = 70