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MathematicsMathematics
25 July, 06:33

Simplify expression

(n-5) (n-9)

+4
Answers (2)
  1. 25 July, 06:36
    0
    You must use the foiling technique n*n, then nx-9, then nx-5, then - 5x-9 and you get n²-14n+45
  2. 25 July, 06:43
    0
    just multiply it out ... n^2-5n-9n+45. Or even simpler n^2-14n+45
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