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下列运算正确的是A.5x2-3x=2B.2x2•3x=6x3C.(-2x2y3)2=4x4...
试题详情
下列运算正确的是( )
A.5x
2-3x=2
B.2x
2•3x=6x
3C.(-2x
2y
3)
2=4x
4y
5D.-3x
2y
3•
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)
=-2x
4y
6
相关试题
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下列运算正确的是( )
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下列运算中,错误的是( )
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A.
=±2
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