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(if) (x-2) (x+4)+9=0oS PR |
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Answer» ( x - 2) ( x + 4) + 9 = 0 x² + 4x - 2x - 8 + 9 = 0 x² - 2x + 1 = 0 ( x - 1)² = 0 So, x = 1 |
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