$\"\"$

The function $\"\"$ .

Derivative of a function $\"\"$ is defined as $\"\"$ .

$\"\"$

The derivative of the given function.

$\"\"$

Binomial expansion : $\"\"$ .

$\"\"$

$\"\"$ .

The domain of a function is all values of x, those makes the function mathematically correct.

Since the function is a polynomial function, the domain of the function is all real numbers.

Therefore domain of the function $\"\"$ is $\"\"$ .

$\"\"$

The derivative function is a polynomial , the domain of the function is all real numbers.

Therefore domain of the function $\"\"$ is $\"\"$ .

$\"\"$ .

Domain of the function $\"\"$ is $\"\"$ .