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6 August, 19:35

If f (x) = x²+3x+1, what is f (x+2) ?

A. x² + 3x + 3

B. (x+2) ²+3 (x+2) + 1

C. (x+2) (x²+3x+1)

D. x²+3x+9

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  1. 6 August, 19:37
    0
    B

    Step-by-step explanation:

    f (x) = x^2+3x+1

    f (x+2) = (x+2) ^2+3 (x+2) + 1

    f (x+2) = (x+2) (x+2) + 3x+6+1

    x^2+2x+2x+4+3x+7

    x^2+4x+3x+11

    x^2+7x+11
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