Find the derivative of f(x)=x⋅7x . (1 point) Responses f′(x)=7x+1(ln7) f ' ( x ) = 7 x + 1 ( ln 7 ) f′(x)=x⋅7x(ln7+1) f ' ( x ) = x ⋅ 7 x ( ln 7 + 1 ) f′(x)=7x(xln7+1) f ' ( x ) = 7 x ( x ln 7 + 1 ) f′(x)=7x+1(ln7) f ' ( x ) = 7 x + 1 ( ln 7 ) f′(x)=7x(ln7+1)

The correct answer is f′(x)=7x⋅ln7+7 f ' ( x ) = 7 x ⋅ ln ⁡ 7 + 7