Question 683836
how to solve: 
log₂(x²)=(log₂x)²
2log2(x)=[log2(x)]^2
[log2(x)]^2-2log2(x)=0
log2(x)(log2(x)-2)=0
log2(x)=0 (reject, log2(x)>0)
log2(x)-2=0
log2(x)=2
x=4