问题
解答题
(1)计算:
(2)化简:(
|
答案
(1)原式=
×0.16 0.36
=0.4×0.6
=0.24;
(2)原式=
+22xy•xy
-
•xyy 2x
•xy8x y
=
xy+2×2
y-22 2
x2
=
xy+2
y-22
x.2
(1)计算:
(2)化简:(
|
(1)原式=
×0.16 0.36
=0.4×0.6
=0.24;
(2)原式=
+22xy•xy
-
•xyy 2x
•xy8x y
=
xy+2×2
y-22 2
x2
=
xy+2
y-22
x.2