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14 May, 13:06

C. 6

12. Expand & simplify:

(x - 5) (x-4)

+4
Answers (1)
  1. 14 May, 13:23
    0
    Step-by-step explanation:

    (x - 5) (x-4)

    = x (x) - 4 (x) - 5 (x) - 4 (-5)

    = x^2 - 4x - 5x + 20

    = x^2 - 9x + 20
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