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Mathematics · Oct / Nov 2025 · Paper 21 · Question 19

0580

As printed in the paper

The question as text

0580/21/O/N/25 © UCLES 2025 [Turn over 19 Solve. 3 1 9 x x 4 ¢ Ë Ī ī x ¢ [3]

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme

8 2 − − or 2 3 oe 3 [3]

M2 for –x = 2(x + 4) oe ( )

or M1 for (3–1)x, 3−x , (32)x+4 2 x + 4 , 3 or ( ) − + 2 x 4 1 oe 3

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