化简求值:
|
•(a
+bb a
+a b
-b
-bab
)÷1
+a b
,b a-b
=
•(
(ab
+a
)b
+a b
-1
-a b
)×1
+a b
,a-b b
=
•ab
×2 b a-b
,a-b b
=2
,ab
当a=3-
,b=3+5
时,原式=25
=2ab
=2(3-
)(3+5
)5
=4.4
化简求值:
|
•(a
+bb a
+a b
-b
-bab
)÷1
+a b
,b a-b
=
•(
(ab
+a
)b
+a b
-1
-a b
)×1
+a b
,a-b b
=
•ab
×2 b a-b
,a-b b
=2
,ab
当a=3-
,b=3+5
时,原式=25
=2ab
=2(3-
)(3+5
)5
=4.4