SOLUTION: Find [g ○ f](x) if g(x) = x - 4 and f(x) = 3x2. 3x² - 4 3x² ­- 8x + 16 3x² ­- 24x + 48 3x² ­- 48

Algebra.Com
Question 1036657: Find [g ○ f](x) if g(x) = x - 4 and f(x) = 3x2.

3x² - 4
3x² ­- 8x + 16
3x² ­- 24x + 48
3x² ­- 48
Found 2 solutions by josgarithmetic, Boreal:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Put f in g and simplify!!
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
Substitute f(x) for x in g(x)
That is 3x^2-4.
RELATED QUESTIONS

Find the rules for the composite functions f ○ g and g ○ f f(x) = 8x^2 +... (answered by Boreal)
Use the functions f(x) = 2x +7, g(x) = x squared + 3x, and h(x) = 1/x-7 to find each of... (answered by funmath)
1. Let f(x)= (x^2)-5 and g(x)= (3x)^2. Find g(f(x)). ANSWER CHOICES A.... (answered by jim_thompson5910)
If we have the following functions: f(x) = 3x – 2 and g(x) = x2 – 2x find the... (answered by eperette)
If f(x) = x3 - 3x2 and g(x) = 4, then f[g(x)] = 16 0 4x^3 - 3x^2 f... (answered by venugopalramana)
Let f(x) = x^2 - 4 and g(x) = -3x^2. Find g(f(x))... This is a multiply choice... (answered by scott8148)
1. g(x)=3x^2+24x+36 2. g(x)=7x^2-14x-7 3. g(x)=9x^2+36x+28 4.... (answered by Fombitz)
Given ƒ(x) = x2 + 4x − 1 and g(x) = 3x − 4, find (g ○ g)(x). (answered by josgarithmetic)
if f(x)=2x+3 and g(x)= 2x^2-3x+4, find... (answered by jim_thompson5910)