Match the given in Column A with the answer in Column B by performing the indicated operation for the following polynomials. Write only the letter of the correct answer. COLUMN A 1) Add 23xy-12x²y-11xy + 2x²ya) 2) Add 2x² + 6y + 3xy; 3x²-5xy-x b) and 6xy + 5 3) From 3x²-5x + 8y + 7xy + 2y², subtract 4x²+2x-3y + 7xy-3y² 4) Subtract 2x² - 4y + 7xy-6y² from -3x² + 5y - 4xy + y² 5) From the sum of 3x² + xy - 5y² and 2x² - xy + 3y² subtract - 6x² + 4xy - 7y². COLUMN B 12xy-10x²y 11x² - 4xy + 5y² c) - 7x² + 14xy-10 d) -x²-7x + 11y + 5y² e) -5x² +9y-11xy + 7y² f) 5x² + 6y + 4xy-x+ 5​