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20 February, 10:15

If p (x) = 2x^2-4 and q (x) = x-3, what is (p•q) (x)

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  1. 20 February, 10:20
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    (p of q) (x) means that q (x) is inserted into p (x).

    p (q (x)) = 2 (x - 3) ^2 - 4

    Expand (x - 3) ^2.

    p (q (x)) = 2 (x^2 - 6x + 9) - 4

    p (q (x)) = 2x^2 - 12x + 14
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