由已知x 3 *x 2a+1 = x 8 ,可得x 2a+4 = x 8 ,因此2a + 4 = 8,移项得2a = 4,所以a = 2,代入原式可得3a 2 –(2a + a 2 –2010) = 2a 2 –2a + 2010 = 2*2 2 –2*2 + 2010 = 8 – 4 + 2010 = 2014 ； 综上所述.原式 =2014 .