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25-06-2020
Mathematics

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For f(x) = 2x + 1 and g(x) = x^2- 7, find (f - g)(x).

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Аноним Аноним

25-06-2020

Answer: -x^2+2x+8

Step-by-step explanation:

(f-g)(x)=2x+1-(x^2-7)

(f-g)(x)=2x+1-x^2+7

(f-g)(x)= -x^2+2x+8

Answer Link

Аноним Аноним

25-06-2020

Answer:

x^2 + 2x - 6

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

= (2x +1) + (x^2 - 7)

= x^2 + 2x - 6

Answer Link

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