Observing the terms of development of (a + b)^{no}, we note that each of them is of the form .

When p = 0 we have the 1st term:

When p = 1 we have the 2nd term:

When p = 2 we have the third term:

When p = 3 we have the 4th term:

When p = 4 we have the 5th term:

…

We then realize that any term **T **order p + 1 can be expressed by