Respuesta :

Answer: 1. (11x^4+9x^3-9x)   2. (-3x^5+7x^4-1)     3. (-x^5-x^2+9)     4. (-9x^5+ x^3 +4x+3)    5. (7x^4 +13x -8)     6. (9x^4 -8x^2 +2x -3)


Step-by-step explanation: