Perform the indicated operations.( 7x2 + 5xy - 3y2 + 3) - ( 5x2  + 6xy + 5y2 - 9)

A. 15x2y2 + 12
B. 2x2  - xy - 8y2 + 12
C. 2x2  + xy + 2y2 + 6
D. -2x2  - xy - 7y2 + 11


Answer: B

Mathematics

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