F(x)=(5+√x)(√x-5)+√x Найдите f'(x)

Question

F(x)=(5+√x)(√x-5)+√x Найдите f'(x)

Answer 1

F(x)=√x²-5²+√x=x-25+√x
  f`(x)=1-0+ 1/(2√x)=1- 1/(2√x)=(2√x-1)/2√x