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6 November, 23:51

15.01:

1) 3x-9/x-3

2) 5x-30/5x+25

3) 3x-21/3x+27

4) 4x/-5x+x^2

5) x+6/x^2+11x+30

6) x^2+4x-21/x-3

7) x^2+x-20/x^2+3x-28

8) x^2+7x+10/x^2-2x-8

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Answers (1)
  1. 7 November, 00:17
    0
    1) 3 (x-3) / (x-3) = 3/1=3

    2) 5 (x-6) / 5 (x+5) = (x-6) / (x+5)

    3) 3 (x-7) / 3 (x+9) = (x-7) / (x+9)

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

    5) (x+6) / (x+6) (x+5) = 1 / (x+5)

    6) (x-3) (x+7) / (x-3) = (x+7) / 1=x+7

    7) (x+5) (x-4) / (x+7) (x-4) = (x+5) / (x+7)

    8) (x+5) (x+2) / (x+2) (x-4) = (x+5) / (x-4)
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