\(\frac{2\cdot5^{22}-9\cdot5^{21}}{25^{10}}:\frac{5\left(3\cdot7^{15}-19\cdot7^{\left(14\right)}\right)}{\left(7^{16}+3\cdot7^{15}\right)}\)

\(\frac{2^{6}\cdot3^{3}\cdot121^{2}\cdot5-2^{4}\cdot3^{3}\cdot11^{4}}{3^{2}\cdot5^{4}\cdot11^{4}-2^{2}\cdot3^{2}\cdot5^{2}\cdot11^{5}}\)

\(\frac{2^{10}\cdot3^{5}\cdot27^{4}-32^{2}\cdot81^{4}}{729^{4}:\left(-9\right)^{4}\cdot16^{5}\left(-8\right)^{3}}\)

e)\({2^{6}\cdot3^{3}\cdot121^{2}\cdot5-2^{4}\cdot3^{3}\cdot11^{4}}{3^{2}\cdot5^{4}\cdot11^{4}-2^{2}\cdot3^{2}\cdot5^{2}\cdot11^{5}}\)

f)\(\frac{\left(-3\right)^{6}\cdot15^{5}+9^{3}\left(-15\right)^{6}}{\left(-3\right)^{7}\cdot15^{5}\cdot2^{3}}\)

\(\frac{3^{8}+5^{2}\cdot9^{4}+5^{3}\cdot81^{2}}{302\cdot3^{8}}\)

\(( x + 1/2 ) . ( x-3/5 ) = 0\)

\(4\cdot\left(-\frac{1}{2}\right)^{3}-2\cdot\left(-\frac{1}{2}\right)^{2}+3\cdot\left(-\frac{1}{2}\right)+1\)

\(\frac{2^{11}\cdot^{9^{2}}}{3^{5}\cdot16^{2}}\)

\(\frac{2^{11}\cdot^{92}}{3^{5}\cdot16^{2}}\)

\(\left(\frac{-7}{8}x+\frac{6}{5}\right):\frac{15}{17}=\frac{34}{3}\)