factorie 1) 4x^2 -17x -15
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Answer:
4x²–17x–15=4x²–12x–5x–15=4x(x–3)–5(x–3)=(4x–5)(x–3)
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4x² - 17x + 15
4x² - (12+ 5)x + 15
4x² -12x -5x + 15
4x(x - 3) - 5(x - 3)
(x - 3) (4x-5)
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