Question

Помогите срочно !!!!!!!

Answer 1

$(12 \frac{1}{4})^4* \frac{2^9}{7^5} = (\frac{49}{4})^4* \frac{2^9}{7^5}= (\frac{7^2}{2^2})^4*\frac{2^9}{7^5}= \frac{7^8}{2^8} * \frac{2^9}{7^5}= {7^3*2}=343*2=686$