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f as a function of x is equal to the square root of quantity 5 x plus 7, g as a function of x is equal to the square root of quantity 5 x minus 7 Find (f + g)(x).

User Xoltawn
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1 Answer

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Answer:

(f+g)(x) =
√(5x+7)+√(5x-7)

Explanation:

f(x) =
√(5x+7)

and g(x) =
√(5x-7)

We need to find (f+g)(x)

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

(f+g)(x) =
√(5x+7)+√(5x-7)

It can't be further solved so,

(f+g)(x) =
√(5x+7)+√(5x-7)

User Carlos Lima
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7.3k points