Question

сократите дробь (2x)^2*x^-9/x^-15*5x^8

Answer 1

$\frac{(2x)^2*x^{-9}}{x^{-15}*5x^8}= \frac{4x^2*x^{-9}}{5x^{-15+8}}= \frac{4x^{2-9}}{5x^{-7}}= \frac{4}{5}x^{-7+7}= \frac{4}{5}x^0 =0,8*1=0,8$