Mathematics · May / June 2026 · Paper 22 · Question 17

−+ 2 5 7 cao [2]

B1 for 12 + 8 7 – 3 7 – 2 × 7 or –2 and 5 7 each count as two correct terms. better, with at least three terms Ignore extra incorrect terms for B1. correct

+ 3 5 cao 2 [3]

Allow correct simplified equivalent for 3 marks, e.g. −− 5 3 , 3 5 + , 1.5 + 0.5 5 . − 2 2 2 oe e.g. ( ) + + 2 3 5 −−

B2 for 6 2 5 , 6 2 5 oe for B2 − 4 4 4 OR −− + 2 3 5 2 3 5 × ×

M1 for oe oe e.g. − + − −− 3 5 3 5 3 5 3 5 then

M1 for –9 + 3 5 – 3 5 –3 5 – 5 or 5 + 5

M1 for 9 + 3 better + If fraction line missing in 3 5 then brackets are 3 5 required, e.g. × + (3 5) 2 − × + 3 5 (3 5)