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9x²-6x+1 descompuneti in factori polinomul




Răspuns :


9x² - 6x + 1 = 9x² - 2·3x + 1 = 9x² - 3x - 3x + 1 = 3x(3x-1)-(3x-1)=(3x-1)·(3x-1)=(3x-1)².

Green eyes.