(х+2)^6
This is binomial expansion.
\((x+2)^6 = {6 \choose 0}x^62^0 + {6 \choose 1}x^52^1 + {6 \choose 2}x^42^2 + {6 \choose 4}x^22^4 + {6 \choose 5}x^12^5 + {6 \choose 6}x^02^6\)
+1223 
