What is the difference of the two polynomials? open paren 7 y squared plus 6 x y close paren minus open paren negative 2 x y plus 3 close paren

Distribute the subtraction across the second polynomial: subtracting (−2xy + 3) changes its terms to +2xy − 3. Then combine like terms: 6xy + 2xy = 8xy. The difference is 7y² + 8xy − 3, which is choice C.

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