SubArea: DerivativeLevel: AProject ID: 9000070804Accepted: 1Easy: 1Differentiate the following function. f(x)=2x9−x2+7f′(x)=18x8−2x; x∈Rf′(x)=9x8−2x+7; x∈Rf′(x)=18x8−2x+7; x∈Rf′(x)=18x8+2x; x∈R