Question

x²=√46

0,8√225-0,5√1.21
Помогите

Answer 1

$x^2=sqrt{46}\sqrt{x^2}=sqrt{sqrt{46}}\|x|=sqrt[4]{46}\boxed{x=sqrt[4]{46}} ; boxed{x=-sqrt[4]{46}}$


$0.8*sqrt{225}-0.5sqrt{1.21}=0.8*15-0.5*1.1=12-0.55=11.45$