InterviewSolution
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x2 – 7 = ……………. A) (x + 7) (x – 7) B)(x + √7)(x – √7) C) (x – 3) (x + 4)D) None |
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Answer» B)(x + √7)(x – √7) Correct option is (B)(x + √7)(x – √7) \(x^2-7=x^2-(\sqrt7)^2\) = \((x+\sqrt7)(x–\sqrt7)\) |
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