Minta bantuannya ya

[tex]f(x) = 4x + 3 \\ g(x) = \frac{x - 1}{2x + 1} \\ h(x) = (f \: o \: g) \\ h(x) = 4( \frac{x - 1}{2x + 3} ) + 3 \\ h(x) = \frac{4x - 4}{2x + 3} + 3 \\ h(x) = \frac{4x - 4 + 3(2x + 3)}{2x + 3} \\ h(x) = \frac{4x - 4 + 6x + 9}{2x + 3} \\ h(x) = \frac{10x + 5}{2x + 3} \\ invers \\ h(x) = \frac{ - 3x + 5}{2x - 10} atau \frac{3x + 5}{2x + 10} \\ maaf \: jika \: salah[/tex]