题目内容
把下列各式化成不含分母的式子:
(1)
=______.
(2)
+
=______.
(3)
=______.
(4)
=______.
(1)
4x |
-2y2z |
(2)
2 |
x |
3 |
y2 |
(3)
2b |
a-b |
(4)
2x-y |
x5y |
(1)原式=-2xy-2z-1;
(2)原式=2x-1+3y-2;
(3)原式=2b(a-b)-1;
(4)原式=(2x-y)x-5y-1;
故答案为:-2xy-2z-1、2x-1+3y-2、2b(a-b)-1、(2x-y)x-5y-1.
(2)原式=2x-1+3y-2;
(3)原式=2b(a-b)-1;
(4)原式=(2x-y)x-5y-1;
故答案为:-2xy-2z-1、2x-1+3y-2、2b(a-b)-1、(2x-y)x-5y-1.
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