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27 August, 20:23

Express the polynomial as a product of linear factors.

f (x) = 3x2 + 12x2 + 3.1 - 18

A. (x-2) (x+3) (x-3)

B. (x + 3) (x+6) (x - 1)

C. (x - 3) (x+3) (x-2)

D. 3 (x - 1) (x+3) (x + 2)

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  1. 27 August, 22:32
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    D. 3 (x - 1) (x+3) (x + 2).

    Step-by-step explanation:

    3 (x - 1) (x + 3) (x + 2)

    = 3 (x - 1) (x^2 + 5x + 6)

    = 3 (x^3 + 5x^2 + 6x - x^2 - 5x - 6)

    = 3 (x^3 + 4x^2 + x - 6)

    = 3x^3 + 12x^2 + 3x - 18.
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