The expanded form of
is
.
To expand the expression
, we can use the binomial expansion formula. The binomial expansion of
is given by:

Where
represents the binomial coefficient, which is given by
.
In our case,
and
. We will expand it step by step:
Step 1: Calculate


Step 2: Calculate


Now, we can use these coefficients to expand the expression:

Step 3: Simplify the terms with
and
:

Step 4: Further simplify the expression:

So, the answer is
.