Question

x=27^n+1-7*3^3n+1 comparati cu y=4^2n+1+2^4n+1

Answer 1

x=27*27^n -7*3*3^3*n =27*27^n -21*27^n=6 * 27^n
y=4* 2^2*2*n  +2*2^4*n =4*2^4*n+2*2^4*n=6*2^4*n=6*16^n 
=> x >y