Mam problem z pierwiastkami, jak nie możecie rozczulać to piszcie ;)

[latex]ig(sqrt{frac{1}{25}}ig)^2-ig(sqrt{frac{1}{4}}ig)^2=frac{1}{25}-frac{1}{4}=frac{4}{100}-frac{25}{100}=-frac{21}{100}[/latex] [latex]dfrac{(sqrt{4})^2-16}{(sqrt{49})^2}=dfrac{4-16}{49}=-dfrac{12}{49}[/latex] [latex]dfrac{sqrt{400}-(sqrt{16})^2}{-(sqrt{36})^2}=dfrac{20-16}{-36}=dfrac{4}{-36}=-dfrac{1}{9}[/latex]