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12 May, 16:42

What is the missing polynomial?

? - (20 - 4x - 5x^2) = 20 - 7x^2

Options:

4x-12x^2

4x-2x^2

40-4x-12x^2

40-4x-2x^2

+2
Answers (2)
  1. 12 May, 17:06
    0
    Answer:C
  2. 12 May, 17:11
    0
    C. 40-4x-12x^2

    Step-by-step explanation:

    very simple

    ? - (20 - 4x - 5x2) = 20 - 7x2, so? = 20 - 7x2 + (20 - 4x - 5x2)

    ? = 20 - 7x2 + (20 - 4x - 5x2) = 20-7x²+20-4x-5x²=40-12x²-4x
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