b) [tex](5^{7} +5^{6}+5^{5}):5^{5}+9^{7}:3^{10} = 5^{7} : 5^{5} + 5^{6}:5^{5} + 5^{5}:5^{5} + (3^{2})^{7}:3^{10}= 5^{2} + 5 + 1 +3^{14}:3^{10}= 25 +5 +1 + 3^{4} = 31 + 81 = 112[/tex]
c)[tex]3^{2}+(4*6)^{2} + 2^{5} * 5^{2} - 1 = 9 + 24^{2} + 32 + 25 -1 = 65 + 576 = 641[/tex]
Reguli de calcul cu puteri:
[tex](x^{m} )^{n} = x^{m*n}[/tex]
[tex]\frac{x^{m}}{x^{n}} = x^{m-n}[/tex]
[tex]x^{m} * x^{n} = x^{m+n}[/tex]
