Question

if f and g are two functions such that f(x) = 5x + 2 and g(x) = x²+3 , then find f + g and f-g
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Answer 1

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

= 5x+2+x²+3

= x² + 5x + 5

(f–g)(x) = f(x) – g(x)

= 5x+2 – (x²+3)

= 5x–1 –x²

Answer 2

Answer:

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