Express 3x+5(x+1)(x+2)\displaystyle \frac{3x+5}{(x+1)(x+2)}(x+1)(x+2)3x+5 in the form A(x+1)+B(x+2)\displaystyle \frac{A}{(x+1)} + \frac{B}{(x+2)}(x+1)A+(x+2)B