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30 July, 21:46

Which choice is equivalent to the expression below?

6root7 minus 5xroot7 minus xroot7

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Answers (1)
  1. 30 July, 22:13
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    Step-by-step explanation:

    6root = 6^2 = 6 x 6

    = 36

    6root7 = 36 x 7 = 252

    Also,

    5xroot7 = 5 x 7^7

    = 5 x 49

    = 245

    Therefore,

    6root7 - 5xroot7 - Xroot7 = 0

    252 - 245 - 7x^2

    = 7 - 7x^2
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