Question 56925
f(x)=x+4
find (f(x))^2 
[f(x)]^2=(x+4)^2
=(x+4)(x+4)
Use the FOIL method to get the product, as follows:
F: x*x=x^2
O: x*4=4x
I: 4*x=4x
L: 4*4=16
Addthe results to get:
x^2+8x+16
Hope this helps.
Cheers,
Stan H.