The expression \[\frac{d^2}{dx^2}\bigl[(2x-1)^4(1-x)^5\bigr] + \frac{d}{dx}\bigl[(2x+1)^4(3x^2-2)^2\bigr]\] is a polynomial of degree

\(9\);

\(8\);

\(7\);

less than \(7\).

The expression \[\frac{d^2}{dx^2}\bigl[(2x-1)^4(1-x)^5\bigr] + \frac{d}{dx}\bigl[(2x+1)^4(3x^2-2)^2\bigr]\] is a polynomial of degree

\(9\);

\(8\);

\(7\);

less than \(7\).