SOLUTION: If f(x) = x^4 + 6, g(x) = x - 4, h(x) = \sqrt(x) , then fogoh(x) = i tried entered it in and i keep getting it wrong.. i believe im making an error with the simplifying (sqrt

Algebra ->  Functions -> SOLUTION: If f(x) = x^4 + 6, g(x) = x - 4, h(x) = \sqrt(x) , then fogoh(x) = i tried entered it in and i keep getting it wrong.. i believe im making an error with the simplifying (sqrt      Log On


   

Question 976133: If f(x) = x^4 + 6, g(x) = x - 4, h(x) = \sqrt(x) , then
fogoh(x) =
i tried entered it in and i keep getting it wrong.. i believe im making an error with the simplifying (sqrt(x))^4+2
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Close. You are making an error in WANTING to simplify



So



So



To simplify the 4th power binomial, use the binomial expansion:



and then substitute for and for , doing all of the required arithmetic and being careful with your signs (even powers of negative numbers are positive, odd powers of negative numbers are negative).

John

My calculator said it, I believe it, that settles it