haiiii, boleh bantu jawab beserta jalan/penjelasannya? terima kasih!

<p>4. f(x) = 3x + 1</p><p>&nbsp; &nbsp; g(x) = 4x - 1</p><p>&nbsp;&nbsp;</p><p>a. (f o g) (x) = &nbsp;f(g(x))</p><p>&nbsp; &nbsp;= f(4x - 1)</p><p>&nbsp; &nbsp;= 3(4x - 1) + 1</p><p>&nbsp; &nbsp;= 12x - 3 + 1</p><p>&nbsp; &nbsp;= 12x - 2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p><p>&nbsp;</p><p>(f o g)^1 (x) = y =&gt; permisalan</p><p>y = 12x - 2</p><p>y + 2 = 12x</p><p>x = (y + 2)/12</p><p>&nbsp;</p><p>Jadi &nbsp;(f o g)^1 (x) = (x + 2)/12</p>