Practice problem
Find the derivative of f(x)f(x)f(x). f(x)=(x+5)(x−5)f(x)=(x+5)(x-5)f(x)=(x+5)(x−5)
f′(x)=5xf'(x)=5xf′(x)=5x
f′(x)=2f'(x)=2f′(x)=2
f′(x)=2xf'(x)=2xf′(x)=2x
f′(x)=x2f'(x)=x^2f′(x)=x2
Type a concept, like “slope” or “photosynthesis”.
