O-LevelMathematicsNumber4024/11 · Oct/Nov 2025 · Q235 Marks
Simplify. √8 × √6 + √3
- (a)Simplify. √8 × √6 + √3[2]
- (b)Rationalise the denominator and simplify. 3 / (2 - √5)[3]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.
- [2] (a) 5√3 final answer
- [B1] for √48 or 4√3
- [3] (b) -3(2+√5) final answer or -(6+3√5) final answer or -6-3√5 final answer
- [M1] for multiplication by (2+√5)/(2+√5) or (-2-√5)/(-2-√5) or B1 for 4+2√5-2√5-5 or better
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