+0  
 
0
43
1
avatar

If (a+b+c+d+e+f+g+h+i)^2 is expanded and simplified, how many different terms are in the final expression? 

 Jan 12, 2020
 #1
avatar+20254 
+1

9 + (9x8)/2 = 45 terms

 Jan 12, 2020

15 Online Users