SOLUTION: Subtract: (4x3 - 9x + 15) - (-2x3 + 4x2 + 7x). Give answer with only positive exponents. Assume x and y are not equal to 0.

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Remove the parentheses, remembering that a negative of a negative is a positive.



Combine like terms:


By the way, what is this about "Give answer with only positive exponents." If the problem is copied correctly how could it be anything else?

R^2 at SCC