Question

Va rogggggggggggggggggggg !!!!!!!!!!

Answer 1

$\frac{(2.5) {}^{2} - (0.5) {}^{2} }{2.(5) - 0.(5)} \\ \\ = \frac{2.5 {}^{2} - 0.5 {}^{2} }{2 \frac{5}{9} - \frac{5}{9} } \\ \\ = \frac{( \frac{5}{2} ) {}^{ {}^{2} } - ( \frac{1}{2} ) {}^{ {}^{2} } }{ \frac{23}{9} - \frac{5}{9} } \\ \\ = \frac{ \frac{25}{4} - \frac{1}{4} }{ \frac{18}{9} } \\ \\ = \frac{ \frac{24}{4} }{2} \\ \\ = \frac{6}{2} \\ \\ = \boxed{3}$