Pomożesz ? Oblicz : 81^4 - 9^8= 2^5 - ( 3^2 - 2^3) = 4x3^3 / 2^4 =

81^4 - 9^8= (9^2)^4 - 9^8 = 9^8 - 9^8 = 0 2^5 - ( 3^2 - 2^3) = 2^5 - (9-8) = 2^5-1 = 32-1=31 4x3^3 / 2^4 = 4*3^3 / (2^2)^2 = 4*3^3/ 4^2 = 4*3^3 / 4*4 = 3^3/4 = 27/4 = 6,75

 81^4 - 9^8= 81*81*81*81-9*9*9*9*9*9*9*9=43046721-43046721=0 2^5 - ( 3^2 - 2^3) = 2*2*2*2*2- (3*3-2*2*2)=32-(9-8)= 32-1=31 4x3^3 / 2^4 =4*3*3*3:2*2*2*2=108:16=6,75