2^x+3+2^x+1-2^x=9×4^13

Răspuns :

2^x *(2³+2-1)=9*4^13
 
2&x * (=9*4^13
2^x=4^13
2^x=2^26
x=26
2^x + 4 = 8*4^13 + 4
2^x = 2^3 * 2^26
x=26+3=29