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(-6.7x ^2 + 2.3x y + 5.2) - (-14.9x ^2 - 3.5x y + 7.1)
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http://www.wolframalpha.com/input/?i=%28-6.7x+^2+%2B+2.3x+y+%2B+5.2%29+-+%28-14.9x+^2+-+3.5x+y+%2B+7.1%29 The Source to your answer
Combine the like terms and simplify
so do you have any answer choices
8.2x^2+5.8xy-1.9
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