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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)
Please Help
4 answers
problem working them out
need help
need help
Could you tell me how far have you gone with this one?
Where do you get stuck?
Where do you get stuck?
Ok - do you know what (f+g)(x) means? It is f(x)+g(x)
Now just plug in your function definitions, and simplify the result.
Just to make things easier, lose all the words. You have
f(x) = √(5x+7)
g(x) = √(5x-7)
Now just plug in your function definitions, and simplify the result.
Just to make things easier, lose all the words. You have
f(x) = √(5x+7)
g(x) = √(5x-7)