Question

4 пжжжжжжжжжж пжжжжжжжжжж срочно

Answer 1

а
$-40a^7b^3$
б
$-24x^6y*1/8y^6=-3x^6y^7$
в
$-a^3b^6*25a^4b^2=-25a^7b^8$