Question

Calculati folosind regulile de calcul cu puteri:

(5 la puterea 7x 5 la puterea8):5 la puterea 3

7 la puterea 5x7 la puterea 7)7 la puterea 2

(3 la puterea 6x3 la puterea 9):3 la puterea 4

(2 la puterea 7)totul la 3:(2x2 la puterea 10)

(7 la puterea 4)totul la 8:(7x7 la puterea 21)

Answer 1

regulile de baza: a^m×a^n=a^m+n
a^m:a^n=a^m-n
(a×b)^m= a^m×b^m

^=la puterea

(5^7×5^8):5^3=5^15:5^3=5^12
(7^5×7^7)×7^2=7^12×7^2=7^14
(3^6×3^9):3^4=3^15:3^4=3^11
(2^7)^3:(2×2^10)=2^10:2^11=2^-1
(7^4)^8:(7×7^21)=7^12:7^22=7^-10
Imi pare rau, dar pt. ultimele doua, nu sunt sigura.