If Ax−1+Bx+2=3x+6x2+x−2\frac{A}{x-1} + \frac{B}{x+2} = \frac{3x+6}{x^2+x-2}x−1A+x+2B=x2+x−23x+6, find A⋅BA \cdot BA⋅B.
666
444
222
333