Mathematics · May / June 2022 · Paper 21 · Question 23
0580
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The question as text
( ) x x x p q 8 10 2 2 + + = + +
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23(a)[2]
[p = ] 4 [q = ] –6 [2]
B1 for one correct or ( ) + 2 − x 4 6 or x2 + px + px + p2 [+ q]
23(b)[2]
–10 and 2 [2]
M1 for ( ) + 2 = x 4 36 or ( + ) 2 = − ( − ) x their 4 30 their 6 or for correct method to solve quadratic e.g. ( )( ) + − x 10 x 2
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