AJUTOR DAU COROANA !!!!
![AJUTOR DAU COROANA class=](https://ro-static.z-dn.net/files/d01/c9f060263372d1809e8eac7c29e92290.png)
Răspuns:
Px=-6x^4+9x^3-2x+7
Qx=2x^4-7x^3+x
suma=-4x^4+2x^3-x+7
diferența=-8x^4+16x^3-3x+7
gradul e 4