Binomial Thereom! Can someone explain this? Expand (x-y)^4 using the binomial thereom. I did it! Kinda at least! It took me trying to figure it out without the textbook! :)

Guest Apr 14, 2020

edited by
Guest
Apr 14, 2020

edited by Guest Apr 14, 2020

edited by Guest Apr 14, 2020

#1**+1 **

Did you look it up in your Textbook? It should all be explained there. If you don't understand it, then consult your Math Teacher. Good luck to you.

Guest Apr 14, 2020

#4**+1 **

\((x-y)^4 \\=\begin{pmatrix}4\\0\end{pmatrix}(x)^4(-y)^0+ \begin{pmatrix} 4\\ 1 \end{pmatrix}(x)^3(-y)^1 +\begin{pmatrix} 4\\ 2 \end{pmatrix} (x)^2(-y)^2 +\begin{pmatrix}4\\3\end{pmatrix}(x)^1(-y)^3 +\begin{pmatrix} 4\\ 4 \end{pmatrix}(x)^0(-y)^4 \)

Work out the pattern and then finish it yourself.

You can ask questions if you want.

Melody Apr 14, 2020