10000y=1200000m(1+2x%)(8%-x%)10000y=1200000m(1+0.02x)(0.08-0.01x)10000y=1200000m(0.08-0.01x+0.0016-0.0002x^2)10000y=96000m-12000mx+1920m-240x^2y=(96000m-12000mx+1920m-240x^2)/10000y=9.6m-1.2mx+0.192m-...