Question 1 [1 mark]
x = 7
Mark scheme
- A [1] — cao x = 7
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x = 7
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y = 7
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x = 5
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a = 5
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b = -6
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c = -2
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d = 15
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e = 172
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x = 7
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y = 5
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a = -2
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b = 72
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c = 4
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d = 5
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e = -1
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x = 5
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p = 7
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m = -5
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n = 165
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k = -6
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x = 4
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y = 175
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a = 11
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b = 4
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c = 3
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x = 2
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x = 16
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x = 4
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x = -7
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x = -3
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