CalculusCalculus: Integration by substitution and change of variables – #27974 Question: Evaluate the definite integral \[\int_{0}^{1}{\left( 2x+1 \right)\sqrt{{{x}^{2}}+x}dx}\] Related Posts:Calculus: Calculus, Integration by substitution and…Calculus: Integration by substitution and change of…Calculus: Integration by substitution and change of…Calculus: Integration by substitution and change of…Calculus: Substitution and Change of variables – #1704Calculus: Calculus, Integration by substitution and…Calculus: Integration by substitution and change of…Calculus: Integration by substitution and change of…