CHECK ANSWER:20
Use the binomial coefficient formula to calculate the binomial coefficient for the 4th term in a polynomial expansion when the power of the binomial is 6.

Question

CHECK ANSWER:20
	Use the binomial coefficient formula to calculate the binomial coefficient for the 4th term in a polynomial expansion when the power of the binomial is 6.

anonymous · Answer

are u sure because i got 20 and that is a choice on here and 15 is not

anonymous · Answer

sorry its 20

anonymous · Answer

its :
$$\left(\begin{matrix}6 \ 3\end{matrix}\right) x^{6-3}y^{3}= 20x^3y^3$$

anonymous · Answer

If i confused you am really sorry, I totally forgot that $$\left(\begin{matrix}6 \ 0\end{matrix}\right)$$ was the first term. instead I took $$\left(\begin{matrix}6 \ 1\end{matrix}\right)$$ as the first term. If there are any other ones i got wrong let me know so i can delete the post and put the correct one up