Question

daca 2^x+2^x+1+2^x+2=112,atunci x egal cu....urgent pt coruana !!!!

Answer 1

$2^x + 2^{x+1} + 2^{x+2}=112 \\ 2^x(1+2^1+2^2)=112 \\ 2^x(1+2+4)=112 \\ 2^x \times 7=112 \\ 2^x=112:7 \\ 2^x=16 \\ 2^x=2^4 \\ \boxed{x=4}$

Answer 2

2^x+2^x+1+2^x+2=112
2^x(1+2+2^2)=112
2^x •7=112
2^x=112:7
2^x=16
2^x=2^4
x=4