Mathematics
 SAT官方每日一题附答案和解析[数学](2019年4月10日)](http://upload.kekenet.com/2019/0410/62261554860726.png)
Which expression is equivalent to the above quotient for all x≠0 and y≠0?
A.50x^3/14y^9
B.7/4xy^3
C.4xy^3/7
D.4x^2y^2/7
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Mathematics
 SAT官方每日一题附答案和解析[数学](2019年4月10日)](http://upload.kekenet.com/2019/0410/62261554860726.png)
Which expression is equivalent to the above quotient for all x≠0 and y≠0?
A.50x^3/14y^9
B.7/4xy^3
C.4xy^3/7
D.4x^2y^2/7