因式分ax2-4ay2,正确结果是()A.4a(x2-y2)B.a(x2-4y2)C.a(x+2y)(x-2y)D.4a(x+y)(x-y)-数学

题目简介

因式分ax2-4ay2,正确结果是()A.4a(x2-y2)B.a(x2-4y2)C.a(x+2y)(x-2y)D.4a(x+y)(x-y)-数学

题目详情

因式分ax2-4ay2,正确结果是(  )
A.4a(x2-y2B.a(x2-4y2C.a(x+2y)(x-2y)D.4a(x+y)(x-y)
题型:单选题难度:偏易来源:不详

答案

ax2-4ay2=a(x2-4y2),
=a(x+2y)(x-2y).
故选C.

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