f(x)= x - cuberoot of x and g(x)= 3x+2/x
evaluate the expression( f o g ) (2/5)

i know that you plug in 2/5 for the g(x) function and get 18. but how do i set up the equation after i get g(x)?? plz help!! i appreciate it!

Question

f(x)= x - cuberoot of x and g(x)= 3x+2/x
evaluate the expression( f o g ) (2/5)

i know that you plug in 2/5 for the g(x) function and get 18. but how do i set up the equation after i get g(x)?? plz help!! i appreciate it!

amistre64 · Answer

f(g), given that g=18

amyna · Answer

yes

amistre64 · Answer

use that same concepts that you used to find g(2/5)  to find f(g)

replace x with g, and let g=18

amyna · Answer

can you please set the equation up? Thanks

amyna · Answer

the answer is supposed to be 6. i dont understand. can someone plz help/

amyna · Answer

|dw:1408210509675:dw|                   here is the question written more well