Differentiation of \(\left(x^2-5 x+8\right) \times\left(x^3+7 x+9\right)\) can be done by
Differentiation of \(\left(x^2-5 x+8\right) \times\left(x^3+7 x+9\right)\) can be done by
Only by using product rule
Only by obtaining a single polynomial, expanding it
Only by using logarithmic differentiation
All of the options are correct
Solution
As given function contains two factors we can apply product rule or we can multiply factors to get a single polynomial.
Another way is to take logarithm and then differentiate.