Giải thích các bước giải:
$\int\dfrac{8x+3}{2x^2+5x+2}dx$
$=\int \dfrac{13}{3\left(x+2\right)}-\dfrac{2}{3\left(2x+1\right)}dx$
$=\dfrac{13}{3}\ln \left|x+2\right|-\dfrac{1}{3}\ln \left|2x+1\right|+C$
$\to \int^1_0\dfrac{8x+3}{2x^2+5x+2}dx=4\ln \left(3\right)-\dfrac{13}{3}\ln \left(2\right)$
$\to a=4,b=13,c=3$
$\to S=12\to B$