Question

If f(x)=3(x+5)+4/x , what is f(a+2)

Answer 1

replace every x with a+2
3(a+2 + 5) + 4/(a+2)
now simplify

Answer 2

i mean 3(a+7)+4/a+2

Answer 3

Put the value of x i.e. a+2 in the eq:)

Answer 4

yes @SantanaG or you can also express as one fraction by finding the lcd

Answer 5

thank you ! :)

Answer 6

you're welcome