Question

Potęgi

a) a^3*a^5*a^-6 =

b) (a^8*a^-3 ):a^2=

c) (a^4*a^-1)*a^-3=

d) (a^7:a^-2):a^-4=

Answer 1

A)=a^8*a^-6=a^8/a^6=a^2
b)=a^8/a^3 :a^2=a^5:a^2=a^3
c)=a^4*a^-3/a=a^3*a^-3=a^3/a^3=1
d)=a^7:1/a^2:a^-4=a^7*a^2:a^-4=a^9:1/a^4=a^9*a^4=a^13

Answer 2

a) a^3*a^5*a^-6 = a^(3+5-6) = a^2
b) (a^8*a^-3 ):a^2=a^(8-3-2) = a^3
c) (a^4*a^-1)*a^-3=a^(4-1-3) = a^0 = 1
d) (a^7:a^-2):a^-4= a^(7+2+4) = a^13