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If f(x) =5x-2 and g(x) =2x+1 , find (f+g)(x)

A.7x-3
B.3x-1
C.4x-3
D.7x-1

1 answer

The sum of two functions f(x) and g(x) is found by adding their respective expressions.

(f+g)(x) = f(x) + g(x)
(f+g)(x) = (5x-2) + (2x+1)
(f+g)(x) = 5x + 2x - 2 + 1
(f+g)(x) = 7x - 1

Answer: D. 7x - 1
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