Question

dadas as funções f(x)=x2-5x+6 e g(x)=x+1,calcule f(g(x))

Answer 1

f(g(x))=(x+1)²-5x+6 => x²+2x+1-5x+6 =

x²-3x+7

Answer 2

f(x)=x2-5x+6 e g(x)=x+1,calcule f(g(x))

F(x+1)=(x+1)²-5.(x+1)+6     F(x+1)=X²-5x+6  >> Y 

Y=x²+x+x+1-5x-5+6
Y=x²+2x-5x+7
Y=x²-3x+7


Função  F(x)= x²-3x+7