g(x)=2x-3 dan (gof)(x)=4x-4x+5. Nilai dari f(2) adalah

(gof)(x) = 4x - 4x + 5
g(f(x) = 4x - 4x + 5
2(f(x) - 3 = 4x - 4x + 5
2(f(x) = 4x - 4x + 5 + 3
2(f(x) = 4x - 4x + 8
f(x) = (4x - 4x + 8)/2
f(x) = 2x - 2x + 4

f(2) = 2(2) - 2(2) + 4
f(2) = 4 - 4 + 4
f(2) = 4