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6x²y³ + 9x²y³ 15x²y³
------------- = ----------
3x²y² 3x²y²
= (15/3) (x²/x²) (y³/y²) = 5y

Just want it to know if is correct, but don't y³ + y³ = 2y³? I'm confused now. Can someone please help?

yes, the answer is 5y and
yes, y³ + y³ = 2y³
but where did this last part enter the picture?

someone ask me where they came from and he was saying that I was wrong; and now I have my doubts, and it confused me. I thought I had it right. I don't know how to break it down for a better understanding, I had help with the problem. Please help

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