Mathematics 0580 · IGCSE · Surds

Surds — practice question

(a)[2]

Simplify $\sqrt{300} + \sqrt{48}$.

(b)[3]

Rationalise the denominator and simplify $\dfrac{9}{2 + \sqrt{7}}$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The simplified value is $14\sqrt{3}$.” …

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