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5 November, 18:35

Find the remainder R by long division and by the Remainder Theorem.

(2x4 - 10x2 + 30x - 60) : (x + 4)

Select the appropriate response:

A) f (-4) = 6 (-4) ^4 - 10 (-4) ^2 + 30 (-4) - 60 = 200

B) f (-4) = 2 (-4) ^4 - 10 (-4) ^2 + 30 (-4) - 60 = 172

C) f (-4) = 2 (-4) ^4 - 10 (-4) ^2 + 30 (-4) - 60 = 142

D) None of the above

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Answers (2)
  1. 5 November, 18:50
    0
    B

    Step-by-step explanation:

    To find it you do you divide by x+4=0 so - 4 plug in - 4 and get 172 so B
  2. 5 November, 18:59
    0
    B) f (-4) = 2 (-4) ^4 - 10 (-4) ^2 + 30 (-4) - 60 = 172

    Step-by-step explanation:

    (2x4 - 10x2 + 30x - 60) : (x + 4)

    x = - 4

    Remainder:

    2 (-4) ⁴ - 10 (-4) ² + 30 (-4) - 60 = 172
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