Question

помогите пожалуйста ​

Answer 1

$8 => (\frac{3}{7} )^{3}*(\frac{3}{7} )^{3}=(\frac{3}{7} *\frac{3}{7})^{3}=(\frac{1}{3})^{3}=\frac{1}{27}\\\\9=> (-\frac{3x}{5})^{3}=-(\frac{3x}{5})^3=-\frac{3x^3}{5^3}= -\frac{27x^3}{125}\\\\10=> (x^4)^{-8}*(x^5)^{6}= x^{-32}*x^{5}*26=26x^{-27}=26*\frac{1}{x^{27}}=\frac{26}{x^{27}}\\\\11=> 8^{-5} * (2^{2})^{7}=2^{-15}*2^{14}=2^{-1}=\frac{1}{2}=0,5\\\\12=>(11^{-2})^{4}: 11^{-9}=11^{-8}:11^{-9}=11\\\\13=> 25^{4}: (-5)^{4}=5^{8}:5^{4}=5^{4}=625\\\\14=> 0,0001^{2}(10^{2})^{2}= 10^{-8}*10^{10}=10^{2}=100$

$15=> 64^{-3}*(4^{2})^{5}= 4^{-9}*4^{10}=4$