ج) $\frac{m^{6} \times m^{-2}}{m^{4}} = \frac{m^{3} \times m^{-2}}{} = m^{1}$

ح) $\frac{25 \times 65 \times 12}{4^{4}} \times (-1/3)^{-2} = \frac{12^{5} \times 12}{4^{4}} = \frac{12^{6}}{4^{4}} = 3^{6} \times -3^{2} = $

خ) $(3^{-5} \times 10^{-5}) \div 30^{4} = 30^{-5} \div 30^{4} = 30^{-9}$

د) $(4^{9} \times 2^{9}) \div (8^{2})^{3} = 8^{9} \div 8^{6} = 8^{3}$