Integration by Substitution/Examples/(2x + 3) by Root of x^2 + 3x + 2

Example of Use of Integration by Substitution

 * $\ds \int \paren {2 x + 3} \sqrt {x^2 + 3 x + 2} \rd x = \dfrac 2 3 {\paren {\sqrt {x^2 + 3 x + 2} }^3} + C$