Which statement about the binomial expansion of (x2 – x)9 is true?
The first term is –x18.
The second term is 9x17.
The third term is 36x14.
The last term is –x9.

Question

Which statement about the binomial expansion of (x2 – x)9 is true?
The first term is –x18.
The second term is 9x17.
The third term is 36x14.
The last term is –x9.

anonymous · Answer

you mean on the last one 
The last term is –x^9

anonymous · Answer

i need to find out of the 4 answers what is true  about (x2-x)9?

anonymous · Answer

you first have to factor out the greatest common factor of x^2-x
then simplify
x^18-9x^17+36^16-84x^15+126x^14-126x^13+84x^12-36x^11+9x^10-x9
from this you should be able to figure out your answer