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20 February, 00:26

Factor completely 5x2 - 50x + 120

Answer

(x - 4) (5x - 30)

(5x - 15) (x - 8)

5 (x - 3) (x - 8)

5 (x - 4) (x - 6)

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Answers (1)
  1. 20 February, 00:51
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    The answer is 5 (x - 4) (x - 6)

    5x² - 50x + 120 = 5*x² - 5*10x + 5*24

    = 5 (x² - 10x + 24)

    = 5 (x * x - 4x - 6x + 6*4)

    = 5 (x (x - 4) - (6x - 6*4))

    = 5 ((x (x - 4) - 6 (x - 4))

    = 5 (x - 4) (x - 6)
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