How can we make two expressions into one expression?

[siva_boggarapu]

Hello Everyone,

='qmem://<builtin>/'&if ( Sum  ({BOM1<Pull_type={"last"}>}OUGroupTotal)-Sum  ({BOM1<Pull_type={"one week ago"}>}OUGroupTotal)>0,'Smiley3_R.png','Smiley1_G.png')

Can we make this code into single code expression?

Thanks in Advanced,