Mathematics

Mathematics, 26.02.2020 03:27, bankscorneliuso39

Find the sum of 3x^2 + 5x - 6 and -x^2 + 3x + 9 , please answer this!!

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Find the sum of 3x^2 + 5x - 6 and -x^2 + 3x + 9 , please answer this!!...

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