(-4)^2007×0.25^2008

问题描述:

(-4)^2007×0.25^2008

﹙﹣4﹚^2007×0.25^2008
=-4^2007×0.25^2007×0.25
=﹣﹙4×0.25﹚^2007×0.25
=﹣1×0.25
=﹣0.25.