toling jawabanya pake cara !!

g (x) = 2x + 3

gof (x) = 4x² + 10x + 11
g (f (x)) = 4x² + 10x + 11
2 f (x) + 3 = 4x² + 10x + 11
2 f (x) = 4x² + 10x + 11 - 3
2 f (x) = 4x² + 10x + 8
f (x) = (4x² + 10x + 8) / 2
f (x) = 2x² + 5x + 4