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Question 70

In this question you must show detailed reasoning.

Express $792\displaystyle 7^{\frac{9}{2}}$ in the form $aba\sqrt{b}$ , where $a\,$ is an integer and $b\,$ is a prime number.

[2]

ii.

Express $74−27\displaystyle \frac{\sqrt{7}}{4-2\sqrt{7}}$ in the form $c+dec+d\sqrt{e}$ , where $c\,$ and $d\,$ are rational numbers and $e\,$ is a prime number.

[3]

Markscheme

Algebraic Expressions Questions

AS Level
Maths
Algebraic Expressions

134 exam-style questions on Edexcel AS Level Maths Algebraic Expressions, covering 1.1 Index Laws, 1.2 Expanding Brackets, 1.3 Factorising, 1.4 Negative and Fractional Indices, and 1.5 Surds. Each one has a worked solution and a mark scheme showing where the marks go.

Algebraic Expressions

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Algebraic Expressions

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Question 70

In this question you must show detailed reasoning.

Express $792\displaystyle 7^{\frac{9}{2}}$ in the form $aba\sqrt{b}$ , where $a\,$ is an integer and $b\,$ is a prime number.

[2]

ii.

Express $74−27\displaystyle \frac{\sqrt{7}}{4-2\sqrt{7}}$ in the form $c+dec+d\sqrt{e}$ , where $c\,$ and $d\,$ are rational numbers and $e\,$ is a prime number.

[3]

Markscheme

Algebraic Expressions Questions

AS Level
Maths
Algebraic Expressions