BRAILEST + THANKS F(x)=x^2+14 and g(x)=x−8 Find (f+g)(−1)

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BRAILEST + THANKS
F(x)=x^2+14 and g(x)=x−8
Find (f+g)(−1)

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Vodka 3 years 2021-08-08T23:12:51+00:00 1 Answers 16 views 0

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  1. Verity
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    2021-08-08T23:14:11+00:00
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    Answer:

    Step-by-step explanation:

    Disclaimer all solutions need to be verified by the student for accuracy in typos, algebra and calculations.

    f(x) = x² + 14      g(x) = x – 2      -1 ?   I think it means evaluate when x = -1

    Find (f(x) + g(x))  when x = -1

     (f(x) + g(x))  =   [ ( x² + 14)  +  (x – 2)]        insert f(x)  and g(x)

                        =   [ x² + x + 14 – 2]               add like the term

     (f(x) + g(x))  =   x² + x + 12

    (f(-1) + g(-1))  =   (-1)² + (-1) + 12             evaluate at x = -1

                       =    1 – 1 + 12

                       =    12

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )