with full steps pls help
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Answer:
5x²-8y²-3xy
Step-by-step explanation:
12x²-5y²+8xy-(7x²+3y²+11xy)
12x²-5y²+8xy-7x²-3y²-11xy
12x²-7x²-5y²+3y²+8xy-11xy
5x²-8y²-3xy
please mark me as brainiest
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