Jawabanmu

2014-06-06T20:11:50+07:00
(g o f)(x) = 2x²+ 4x + 5
g(x) = 2x + 3
g[f(x)]=
2x²+ 4x + 5
2f(x)+3=2x²+ 4x + 5
2f(x)=2x²+ 4x + 2
f(x)=x²+ 2x + 1
2014-06-06T20:12:11+07:00
G(f(x)= 2x^2+4x+5
2(f(x))+3=2x^2+4x+5
2 f(x)=2x^2+4x+2
f(x)=x^2+2x+1