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Estudos Gerais • 03/26/2025

(3x² + 9x - 5) + (2x² - 8x - 3) = (7x³ + 12x² - 4x + 3) + (-...

(3x² + 9x - 5) + (2x² - 8x - 3) = (7x³ + 12x² - 4x + 3) + (-5x² + 7x - 4) = (x² + 11x + 2) + (-2x³ - 8x - 5) = (3x² - 11x) + (-7x² + 12x + 9) =

(3x² + 9x - 5) + (2x² - 8x - 3) = (7x³ + 12x² - 4x + 3) + (-5x² + 7x - 4) = (x² + 11x + 2) + (-2x³ - 8x - 5) = (3x² - 11x) + (-7x² + 12x + 9) =
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