Mathematics · Oct / Nov 2025 · Paper 21 · Question 18
0580
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( )x x 2 5 f ¢ Ë ( ) ( ) ( ) x x x Áx c c f f ff 2 Ä ¢ Ë Ë Find the value of ¹, the value of and the value of c. ¹ ¢ ¢ c ¢ [4]
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[a =] 4 [b =] 16 [c =] 10 [4]
B3 for two correct nfww OR + +
B2 for 4 x 2 20 x 25
or B1 for three terms correct 2 + + + from 4 x 10 x 10 x 25
M1 for 2(2x + 5) + 5 soi
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