For this case we have the following expression:
![\frac{10x^5y^(12)}{-5x^(-2)y{-6}}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/5rdsye5jhd0rfh07clahuia58nqf1dyaf4.png)
Rewriting the expression we have:
![\frac{-2x^5y^(12)}{x^(-2)y{-6}}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ivtco5d8q6iavhdrgurzpaahv0ik3jasnl.png)
Then, by properties of exponents we have:
"In a division, if we have the same base, the exponents are subtracted"
We have then:
Answer: An expression that is equivalent is: ![-2x^(7)y^(18)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/bt7u4ajilhwdqza9nd2ifl70ttycvtnadn.png)