selesaikan persamaan 4^x+1 + 2^2x= 20

Materi Eksponen [tex] 4^{x+1} + 2^{2x} = 20 \\ 4^{x+1} + 2^{2x} = 16 + 4 = 4^2 + 2^2 \\ x + 1 = 2 \land 2x = 2 \\ x = 1 \land x = 1 \\ \boxed{x = 1} [/tex]