Respuesta :
Answer:
[tex]g(5)=17[/tex]
[tex]f(g(5))=274[/tex]
Step-by-step explanation:
1. First you must substitute x=5 into g(x), then you obtain:
[tex]g(x)=4x-3\\[/tex]
[tex]g(5)=4*5-3[/tex]
[tex]g(5)=17[/tex]
2. Now, you must insert g(x) into f(x), as you can see below:
[tex]f(x)=x^{2}-x+2[/tex]
[tex]f(g(x))=(4x-3)^{2}-(4x-3)+2[/tex]
3. Finally, you must susbtitute x=5 into f(g(x)), as following:
[tex]f(g(5))=(4*5-3)^{2}-(4*5-3)+2[/tex]
[tex]f(g(5))=274[/tex]
Answer:
g(5) = 17
f(g(5)) = 274
Step-by-step explanation:
We are given the following two functions and we are to find the value of [tex] g (5) [/tex] and [tex] f ( g (5) ) [/tex]:
[tex] f (x) = x^2 - x + 2 [/tex]
[tex] g (x) = 4x - 3 [/tex]
Finding [tex] g (5) [/tex] by substituting the given value 5 in it:
[tex] g (5) = 4(5) - 3 = 20 - 3 = 17 [/tex]
Now finding [tex] f ( g (5) ) [/tex]:
[tex] f ( g (5) ) = x^2 - x + 2 = (17)^2 - (17) + 2 = 274 [/tex]