indefinite-integration

Question: If $\int_{{}}^{{}}{\ln ({{x}^{2}}+x)dx=x\ln ({{x}^{2}}+x)+A}$, then $A=$



1) $2x+\ln (x+1)+$constant
2) $2x-\ln (x+1)+$constant
3) Constant
4) None of these
Solution: Explanation: No Explanation
Integration by parts

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