Question

найдите p1(x)+p2(x) и p1(x)-p2(x,если p1(x)=2x^3-3x+1 p2(x)=-x^3-2x-1

Answer 1

p1(x)+p2(x) =2x^3-3x+1+(-x^3-2x-1)=2x^3-3x+1-x^3-2x-1=x^3-5x
p1(x)p2(x) =2x^3-3x+1-(-x^3-2x-1)=2x^3-3x+1+x^3+2x+1=3x^3-x+2