Odpowiedź:
[tex]2.\\\\(-8)^7\ \ \ \ ujemny\\\\-1^{10}\ \ \ \ ujemny\\\\-(-2)^{11}=-(-2048)=2048\ \ \ \ dodatni\\\\5^9\cdot(-3)^{14}=5^9\cdot3^{14}\ \ \ \ dodatni\\\\\\3.\\\\4^6\cdot4^8=4^{6+8}=4^{14}\\\\9^{16}:9^4=9^{16-4}=9^{12}\\\\(7^5)^6=7^{5\cdot6}=7^{30}\\\\2^9\cdot16:64=2^9\cdot2^4:2^6=2^{9+4-6}=2^7\\\\9^{4^{2}}=9^{16}\\\\\frac{4}{9}\cdot(\frac{2}{3})^{10}=(\frac{2}{3})^2\cdot(\frac{2}{3})^{10}=(\frac{2}{3})^{2+10}=(\frac{2}{3})^{12}[/tex]
