Question

Срочно все баллы отдаю помогите

Answer 1

$\frac{b_{2}}{b_{1}} =\frac{-2}{\frac{2}{5} }=-\frac{2}{\frac{2}{5} } =-5\\\\\frac{b_{3}}{b_{2}}=\frac{10}{-2}=-5\\\\\frac{b_{4}}{b_{3}} =\frac{-50}{10}=\frac{-50:10}{10:10}=\frac{-5}{1}=-5\\\\Otvet:\; \boxed{-5\;\;\; -5 \;\;\;-5 }$