20170467 20170467

17-06-2019
Mathematics

contestada

what is the value of (f +2g)(4)

f(x)= (x-2)²; g(x)= x+3

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Аноним Аноним

17-06-2019

Answer:

18.

Step-by-step explanation:

g(x) = x + 3 so 2g(x) = 2x + 6

(f + 2g)(x) = (x - 2)^2 + 2x + 6

therefore

(f + 2)(4) = (4 - 2)^2 + 2(4) + 6

= 2^2 + 8 + 6= 18.

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