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

User David Neale
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19 votes

Answer:

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

User Glenn Vandamme
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