Question

計(jì)算：(a-

x2

a

)÷(x-

a2

x

)=

-

x

a

．

Answer 1

分析：先通分，再把除法轉(zhuǎn)化成乘法，再進(jìn)行約分即可得出答案．

解答：解：(a-

x2

a

)÷(x-

a2

x

)
=

a2-x2

a

÷

x2-a2

x

=

a2-x2

a

×

x

a2-x2

=-

x

a

．
故答案為：-

x

a

．

點(diǎn)評(píng)：此題考查了分式的混合運(yùn)算，用到的知識(shí)點(diǎn)是通分、約分、分式的除法，在計(jì)算時(shí)要注意把所得結(jié)果化為最簡(jiǎn)．