Răspuns :

[tex](3 {}^{19} \times 25 {}^{9} ) {}^{2} = 3 {}^{2 \times 19} + 2 {}^{2 \times 9} = 3 {}^{38} + 25 {}^{18} = > (3 {}^{19} \times 25 {}^{9} ) {}^{2} \div 15 {}^{36} = \frac{3 {}^{38} + 25 {}^{18} }{15 {}^{36} } [/tex]