Respuesta :
Further can be simplified as,
1x^4-4x^3-9x^2+16x+20
_____________________
By exponential rule,
-12x^4+3+2+16x+20
Final equation >-12x^9+16x+20.
1x^4-4x^3-9x^2+16x+20
_____________________
By exponential rule,
-12x^4+3+2+16x+20
Final equation >-12x^9+16x+20.