Question

помогите пожалуйста. срочно!!!!

Answer 1

$36m^2n^3-49m^4n=m^2n(36n^2-49m^2)=m^2n((6n)^2-(7m)^2)=\\m^2n(6n-7m)(6n+7m)$

$-50-20x-2x^2=-2*(25+10x+x^2)=-2*(5+x)^2$