Express 15−3x(x+1)(x−2)2\displaystyle \frac{15-3x}{(x+1)(x-2)^2}(x+1)(x−2)215−3x in the form Ax+1+Bx−2+C(x−2)2\displaystyle \frac{A}{x+1} + \frac{B}{x-2} + \frac{C}{(x-2)^2}x+1A+x−2B+(x−2)2C
