Manipulating Surds (Edexcel GCSE Maths): Quizzes

Expressions with irrational square roots

Surds preserve true mathematical value

$\sqrt{a \times b}$

$b$

$4$

$\sqrt{\frac{a}{b}}$

No, it cannot be simplified further

No, these are completely different values

$11 + 6\sqrt{2}$

$a^2 - b$

$22$

$3\sqrt{2}$

$16\pi$ cm²