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

Question

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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Josephine 1 week 2021-10-10T20:48:16+00:00 1 Answer 0

Answers ( )

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    2021-10-10T20:49:52+00:00

    Answer:

    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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