Question

f(x)=7(x*x+x+1) Найдите производные этих функций

Answer 1

f(x)=7x^2+7x+7

f'(x)=14x+7

Answer 2

$f(x)=7(x*x+x+1) =7(x^2+x+1)=7x^2+7x+7; f'(x)=(7x^2+7x+7)'=(7x^2)'+(7x)'+(7)'=7(x^2)'+7(x)'+0=7*2x+7*1=14x+7$