Question

化简： 14a²b³（x-y）的五次方/63a的五次方b²（y-x）的九次方

Answer 1

14a²b³（x-y)^5/63a^5b²（y-x）^9
=14a²b³（x-y)^5/{63a^5b²[-(x-y)^9]}
=-14/63b^(3-2)/{a^(5-3)(x-y)^(9-5)]
=-2b/[9a²(x-y)^4]

Answer 2

14a²b³（x-y）的五次方/63a的五次方b²（y-x）的九次方
=-14a²b³（y-x）的五次方/63a的五次方b²（y-x）的九次方
=-14b³/63a³（y-x）的4次方

Answer 3

[14a²b³(x-y)^5]/[63a^5b²(y-x)^9]
=-(14/63)*a^(2-5)*b^(3-2)*(x-y)^(5-9)
=-(2/9)*a^(-3)*b*(x-y)^(-4)

Answer 4

14a²b³（x-y）的五次方/63a的五次方b²（y-x）的九次方
=[14a²b³(x-y)^5]/[63a^5b²(y-x)^9]
=-[14a²b³(x-y)^5]/[63a^5b²(x-y)^9]
=-[2a²b³(x-y)^5]/[9a^5b²(x-y)^9]
=-[2b(x-y)^5]/[9a³(x-y)^9]
=-[2b]/[9a³(x-y)^4]