SOLUTION: okay i can't remember what this is called but here is the problem i need to solve: find(f0g)(x) for f(x)= 3x^2 and g(x)=5-x

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: okay i can't remember what this is called but here is the problem i need to solve: find(f0g)(x) for f(x)= 3x^2 and g(x)=5-x       Log On


   



Question 312603: okay i can't remember what this is called but here is the problem i need to solve:
find(f0g)(x) for f(x)= 3x^2 and g(x)=5-x

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)= 3x^2 ___ g(x)=5-x

f[g(x)] = 3[g(x)]^2 = 3(5-x)^2 = 75 - 30x + 3x^2