I think: ##4sqrt(5)##
I would go for: ##sqrt(80)=sqrt(8*10)=sqrt(4*2*5*2)=sqrt(16*5)=4sqrt(5)##
I think: ##4sqrt(5)##
I would go for: ##sqrt(80)=sqrt(8*10)=sqrt(4*2*5*2)=sqrt(16*5)=4sqrt(5)##
I think: ##4sqrt(5)##
I would go for: ##sqrt(80)=sqrt(8*10)=sqrt(4*2*5*2)=sqrt(16*5)=4sqrt(5)##