Răspuns :
[tex]\displaystyle\bf\\8\times\sqrt{0,25}=\\\\=8\times\sqrt{(0,5)^2}=\\\\=8\times0,5=\\\\=8\times\frac{1}{2}=\\\\=\frac{8}{2}=\boxed{\bf4}[/tex]
[tex]\displaystyle\bf\\8\times\sqrt{0,25}=\\\\=8\times\sqrt{(0,5)^2}=\\\\=8\times0,5=\\\\=8\times\frac{1}{2}=\\\\=\frac{8}{2}=\boxed{\bf4}[/tex]