How do you solve this function? When x=(a+2).

Question

#f(x)=3(x+5)+4/x#

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Answer 1 · 2018-01-10T06:48:56

See below

Simply, substitute the value of x in the given equation,

#f(a + 2) = 3(a + 2 +5) + 4/(a +2)#

#=> f(a + 2) = 3a + 4/(a + 2) + 21#

You can also simplify it further as per your requirement.