Question

помогите даю 15 балов​

Answer 1

Ответ:

1) 4m²+mn-pmn=m(4m+n-pn)

2)0,25x²y-2,8x$x^{5}$-xy³= 1/4x²y-14/5$x^{5}$-xy³=1/20x*(5xy-56$x^{4}$-20y³)=0,05x*(5xy-56$x^{4}$-20y³)

3)-5+c²a³+c³a²= -5+a³c²+a²c³