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Factorise x^2 - 2x - 7 |
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Answer» Now, x² - 2x - 7 = x² - 2x + 1 - 1 - 7 = (x² - 2x + 1) - 8 = (X - 1)² - (2√2)² = (x - 1 + 2√2) (x - 1 - 2√2), which is the required FACTORIZATION. # |
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