(x² - 9) / (x - 3) = ?
उत्तर: (C) x + 3 — x²-9 = (x+3)(x-3). So (x²-9)/(x-3) = (x+3)(x-3)/(x-3) = x+3 (where x≠3). This uses the difference of squares identity: a²-b² = (a+b)(a-b).
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