Odpowiedź:
[tex]\huge\boxed{-3x^6+2x^5+7x^4-4x^3-17x^2+10x+5}[/tex]
Szczegółowe wyjaśnienie:
[tex]W(x)=-3x^2+2x+1\\\\P(x)=x^4-2x^2+5\\\\W(x)\cdot P(x)=(-3x^2+2x+1)(x^4-2x^2+5)\\\\=(-3x^2)(x^4)+(-3x^2)(-2x^2)+(-3x^2)(5)+(2x)(x^4)\\+(2x)(-2x^2)+(2x)(5)+(1)(x^4)+(1)(-2x^2)+(1)(5)\\\\=-3x^6+6x^4-15x^2+2x^5-4x^3+10x+x^4-2x^2+5\\\\=-3x^6+2x^5+(6x^4+x^4)-4x^3+(-15x^2-2x^2)+10x+5\\\\=-3x^6+2x^5+7x^4-4x^3-17x^2+10x+5[/tex]
