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Question 34

Simplify fully (7+210)(7−210)13\displaystyle \frac{(7 + 2\sqrt{10})(7 - 2\sqrt{10})}{\sqrt{13}}13​(7+210​)(7−210​)​

You must show all your working.

Hence, write down the exact value of 13(7+210)(7−210)\displaystyle \frac{\sqrt{13}}{(7 + 2\sqrt{10})(7 - 2\sqrt{10})}(7+210​)(7−210​)13​​.

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Surds Questions

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217 exam-style questions on WJEC GCSE Maths Surds. Each one has a worked solution and a mark scheme showing where the marks go.

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