题目内容
计算:(
-
)
=______.(3-
)7(3+
)6=______.
32 |
8 |
2 |
10 |
10 |
(
-
)×
=
×
-
×
=
-
=8-4
=4;
(3-
)7(3+
)6
=[(3-
)6(3+
)6]•(3-
)
=[(3+
)(3-
)]6•(3-
)
=(-1)6•(3-
)
=3-
.
故答案为:4;3-
32 |
8 |
2 |
=
32 |
2 |
8 |
2 |
=
64 |
16 |
=8-4
=4;
(3-
10 |
10 |
=[(3-
10 |
10 |
10 |
=[(3+
10 |
10 |
10 |
=(-1)6•(3-
10 |
=3-
10 |
故答案为:4;3-
10 |
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