问题
填空题
计算:(xy)5÷(xy)3=_____________,(-0.25)2013×42014=____________.
答案
x2y2;﹣4.
题目分析:(xy)5÷(xy)3= (xy)2= x2y2;(-0.25)2013×42014= [(﹣0.25)×4]2013×4=﹣4.
故答案是x2y2;﹣4.
计算:(xy)5÷(xy)3=_____________,(-0.25)2013×42014=____________.
x2y2;﹣4.
题目分析:(xy)5÷(xy)3= (xy)2= x2y2;(-0.25)2013×42014= [(﹣0.25)×4]2013×4=﹣4.
故答案是x2y2;﹣4.