(0.125)的12次方×(-1又2/3)的9次方×(-8)的13次方×(-3/5)的8次方=?
=(0.125)^12x(-5/3)^8x(-5/3)x(-8^12x8)x(-3/5)^8
=-(0.125x8)^12x8x[(-5/3)(-3/5)]^8
=-1x8x1
=-8