Question

if f(×)=2x-3,gof(x)=2×-1 then find fog (2) ​

Answer 1

g(f(x))=2x−1

⟹g(2x+3)=2x−1

⟹g(y)=y−4

⟹f(g(2))=f(2−4)=f(−2)=2(−2)+3=−1