| Exam Board | Edexcel |
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| Module | AEA (Advanced Extension Award) |
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| Year | 2010 |
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| Session | June |
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| Topic | Laws of Logarithms |
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1．（a）Solve the equation
$$\sqrt { } ( 3 x + 16 ) = 3 + \sqrt { } ( x + 1 )$$
（b）Solve the equation
$$\log _ { 3 } ( x - 7 ) - \frac { 1 } { 2 } \log _ { 3 } x = 1 - \log _ { 3 } 2$$