Question

3 supra 4 -(2supra5)La puterea2​

Answer 1

Răspuns:

3/4-2²/5²=²⁵⁾3/4-⁴⁾4/25=75/100-16/100=59/100

Answer 2

 

$\displaystyle\bf\\\frac{3}{4}-\bigg(\frac{2}{5}\bigg)^2=\\\\=\frac{3}{4}-\frac{2^2}{5^2}=\\\\=\frac{3}{4}-\frac{4}{25}=~~(Aducem~la~acelasi~numitor)\\\\=\frac{^{25)}3~~}{~~~4~~}-\frac{^{4)}4~}{~~~25~~}=\\\\=\frac{75}{100}-\frac{16}{100}=\\\\=\frac{75-16}{100}=\boxed{\bf\frac{59}{100}}$