题目内容
计算:-
x(3x2-2y+2)=______.
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-
x(3x2-2y+2)
=(-
x)•3x2-(-
x)•2y+(-
x)•2
=-
x3+xy-x.
故答案为:-
x3+xy-x.
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| 2 |
=(-
| 1 |
| 2 |
| 1 |
| 2 |
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=-
| 3 |
| 2 |
故答案为:-
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