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9 July, 12:16

Factorise& expanding

Can you factorise

81n-45

+4
Answers (1)
  1. 9 July, 12:29
    0
    9 (9n-5)

    9=0 9n-5=0

    9n=5

    9/5 is the answer and 0 or 9 (9n-5)
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