(Polynomial)
(8x²-9x+12)+(-12x²-9x-19)
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Step-by-step explanation:
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Answered by
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Step-by-step explanation:
(8x²-9x+12)+(-12x²-9x-19)
8x²-9x+12-12x²-9x-19
-4x²-18x-7
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