(-4a-1)与(4a-1)的积等于( )A.-1+16a2B.-1-8a2C.1-4a2D.1-16a2
题型:单选题难度:一般来源:不详
(-4a-1)与(4a-1)的积等于( )A.-1+16a2 | B.-1-8a2 | C.1-4a2 | D.1-16a2 |
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答案
(-4a-1)(4a-1)=1-16a2. 故选D. |
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