Question

Find f'(5) if f(x) = 5x²+3x

Answer 1

Hi...☺️

Here is your answer...✌️

f(x) = 5x²+3x

Diff. both sides w.r.t. x

f'(x) = 10x+3

now,

f'(5) = 10(5)+3

= 50+3

= 53

Answer 2

f(x) = 5x²+3x
f'(x) = 10x+3
f'(5) = 10(5)+3
= 50+3
= 53