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13 August, 16:36

If p (x) = 2x2 - 4x and q (x) = x - 3, what is (p*q) (x)

A. 2x2 - 4x + 12

B. 2x2 - 16x + 18

C. 2x2 - 16x + 30

D. 2x2 - 16x + 15

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Answers (1)
  1. 13 August, 16:51
    0
    Hello:

    (poq) (x) = p (q (x)) = p (x-3) = 2 (x-3) ²-4 (x-3) = 2 (x²-6x+9) - 4 (x-3)

    (poq) (x) = 2x²-12x+18-4x+12

    (poq) (x) = 2x²-16x+30 ... (answer : C)
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