Question

Calculate dy/dx
y = (x^0.8 − 2x − 7)(x^−1 + x^−2)

Answer 1

Use product rule.

Answer 2

1. use product rule
2. just simply multiply and obtain one expression and then differentiate it

Answer 3

What they said^^^ derivative of
\[ f(x)g(x) = f'(x)g(x) + f(x)g'(x)\]

Answer 4

first multiply them and then find the derivative.