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16 October, 13:35

If f (x) = x and g (x) = 3x + 1 are two real functions. Find (f + g) (x)

+1
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  1. 16 October, 13:54
    0
    4x + 1

    Step-by-step explanation:

    note that (f + g) (x) = f (x) + g (x), thus

    f (x) + g (x)

    = x + 3x + 1 ← collect like terms

    = 4x + 1
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