Answer:
−x4−9x3−30x2+14x−20
Step-by-step explanation:
x− 4 /4 x4−9x3−30x2+13x−20
=x+−x4+−9x3+−30x2+13x+−20
Combine Like Terms:
=(−x4)+(−9x3)+(−30x2)+(x+13x)+(−20)
=−x4+−9x3+−30x2+14x+−20
