Mathematics · May / June 2022 · Paper 22 · Question 20
0580
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The question as text
Factorise completely.
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20(a)[2]
( )( ) + − 2 m 3 p 1 4 k final answer [1]
( ) + − + 2
B1 for 2 m 3 p 4 k 2 m 3 p or better ( ) ( ) − + − or 2 m 1 4 k 3 p 1 4 k or correct answer seen and spoilt
20(b)[3]
( − )( + ) 5 x 2 y x 2 y final answer [3]
B2 for (5x – 10y)(x + 2y) or (x – 2y)(5x + 10y) or correct answer seen then spoilt
or B1 for ( ) 2 − 2 5 x 4 y or for ( − )( + ) x 2 y x 2 y
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