问题 填空题
计算:(a-
x2
a
)÷(x-
a2
x
)
=______.
答案

(a-

x2
a
)÷(x-
a2
x
)

=

a2-x2
a
÷
x2-a2
x

=

a2-x2
a
×
x
a2-x2

=-

x
a

故答案为:-

x
a

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