Mathematics · Oct / Nov 2025 · Paper 21 · Question 25
0580
As printed in the paper
The question as text
Simplify. 4 10 2 x Áx x Á 25 6 25 15 Ä Ë Ä Ä [4]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
+ 5 3 a b final answer + 2 5 x [4]
B2 for (5 a + 3 )(2 b x − 5) − + −
or B1 for 5 (2 a x 5) 3 (2 b x 5) + − + or for 2 (5 x a 3 ) b 5(5 a 3 ) b + −
B1 for (2 x 5)(2 x 5)
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