In order for kevin to prove the polynomial identity (a+b)2=a2+2ab+b2, what is the first step that kevin needs to use to rewrite (a+b)2?
a
2(a+b)

b
a2+b2

c
(a+b)(a+b)

d
(a+b)2(a+b)2

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?