Which expression shows the sum of the polynomials with like terms grouped together? 10 x squared y plus 2 x y squared minus 4 x squared minus 4 x squared y

Like terms have the same variables raised to the same powers. The terms 10x²y and −4x²y are like terms, so they should be grouped together; −4x² and 2xy² do not match them or each other. Choice D groups 10x²y and −4x²y in brackets.

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