$\"\"$

Observe the graph:

The graph of the function have zeros at $\"\"$ and $\"\"$ .

So the required function is $\"\"$ .

Rewrite the function.

$\"\"$

The function is $\"\"$ .

Apply derivative with respect $\"\"$ .

$\"\"$

Apply derivative with respect $\"\"$ .

$\"\"$

Graph :

Plot the graphs $\"\"$ , $\"\"$ and $\"\"$ .

$\"\"$

Graphs of the functions $\"\"$ , $\"\"$ and $\"\"$ .

$\"\"$ .