问题 解答题
(1)计算:
0.16×0.36

(2)化简:(
2xy
+2
y
2x
-
8x
y
).
xy
(x>0)
答案

(1)原式=

0.16
×
0.36

=0.4×0.6

=0.24;

(2)原式=

2xy•xy
+2
y
2x
•xy
-
8x
y
•xy

=

2
xy+2×
2
2
y-2
2
x

=

2
xy+
2
y-2
2
x.

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