Question Number 81596 by zainal tanjung last updated on 14/Feb/20
$$\mathrm{f}\left(\mathrm{x}\right)=\mathrm{3x}+\mathrm{1}\:,\:\:\mathrm{g}\left(\mathrm{x}\right)=\mathrm{2x}+\mathrm{3} \\ $$$$\left.\mathrm{a}\right).\:\mathrm{fog}\left(\mathrm{x}\right)=…. \\ $$$$\left.\mathrm{b}\right).\:\mathrm{gof}\left(\mathrm{x}\right)=…. \\ $$
Commented by Tony Lin last updated on 14/Feb/20
$${f}\circ{g}\left({x}\right)=\mathrm{3}\left(\mathrm{2}{x}+\mathrm{3}\right)+\mathrm{1}=\mathrm{6}{x}+\mathrm{10} \\ $$$${g}\circ{f}\left({x}\right)=\mathrm{2}\left(\mathrm{3}{x}+\mathrm{1}\right)+\mathrm{3}=\mathrm{6}{x}+\mathrm{5} \\ $$
Commented by Zainal Arifin last updated on 14/Feb/20
$$\mathrm{You}\:\mathrm{are}\:\mathrm{right}! \\ $$