Question 1 [1 mark]
32 (x ≠ 0).
Mark scheme
- A [1] — cao
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32 (x ≠ 0).
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xy (x, y ≠ 0).
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x + 1 (x ≠ 1).
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2x (x ≠ 0).
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x + 2 (x ≠ 0).
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1 (x ≠ −3).
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2 (x ≠ −2).
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x + 2 (x ≠ 0, 2).
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1 (x ≠ 0, −1).
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1 (x ≠ 1, −2).
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x = 3 (x ≠ −1).
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x = 25 (x ≠ 0).
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x = 3 (x ≠ 1).
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7x (x ≠ 0).
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x = 1 (x ≠ 0).
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x = 8 (x ≠ 2, −1).
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7xx + 1 (x ≠ −1).
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4x - 2 (x ≠ 2).
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2x + 3 (x ≠ −3).
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5x2x - 1 (x ≠ 12).
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x + yxy (x, y ≠ 0).
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2x + 3x² (x ≠ 0).
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x20.
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3x - 2x² (x ≠ 0).
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5x + 7(x + 1)(x + 2) (x ≠ −1, −2).
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2x + 1x(x + 1) (x ≠ 0, −1).
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5(x - 1)(x + 2)(x - 3) (x ≠ −2, 3).
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x + 3x² - 1 (x ≠ ±1).
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2xx² - 1 (x ≠ ±1).
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4xx² - 1 (x ≠ ±1).
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