SOLUTION: Let f(x)=x^2+4 and g(x)=2x+3 Find the expression. (g*f)(x)

Algebra.Com
Question 853199: Let f(x)=x^2+4 and g(x)=2x+3 Find the expression.
(g*f)(x)

Found 2 solutions by hamsanash1981@gmail.com, tommyt3rd:
Answer by hamsanash1981@gmail.com(151)   (Show Source): You can put this solution on YOUR website!
(g*f)(X) = g(f(x))
= g(x^2+4)
= 2(x^2+4)+3
=2x^2+8+3
= 2x^2+11

Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!
(g*f)(x)=
g(x)*f(x)=
(2x+3)(x^2+4)=
2x(x^2+4)+3(x^2+4)=
2x^3+8x+3x^2+12=

RELATED QUESTIONS

Let f(x) = x2 – 2x + 2 and g(x) = x – 3. Find f(x) •... (answered by Tatiana_Stebko)
let f(x)=4x-3 and g(x)=x^2-2x find... (answered by Theo)
Let f(x)=-5x(squared)-2x+3 and g(x)=6x+4 Find:... (answered by Fombitz)
Let f(x) = -3x-3 and g(x)=x^2+2x. Find... (answered by Abbey)
Let f(x)= √(x+3) and g(x)=2x^2. Find (f of... (answered by stanbon)
Let f(x) = 2x - 4 and g(x) = 0.5x+2. Find... (answered by bucky)
Let f(x)=-2x -1 and g(x)=x^2+3 Find (f o g)... (answered by Fombitz)
If f(x)=2x-1 and g(x)=x^2 find : 1. g(g(x)) 2. g(f(x)) 3. f(g(x)) 4.... (answered by fcabanski)
Let f(x)=x^2-3x and g(x)=2x-4, find and simplify each expression. g*f and... (answered by jim_thompson5910)