How to rewrite the following expression with positive exponents?

florida_sassy

New member
I have a test in Algebra tomorrow, but I still struggle with these sort of problems can you please show me how to do this problem step by step thank you!!!

-10xy^8 -5xy^-2
------------ * ------------ [^= to the power]
2x^4y^2 (-y)^3
 
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