Identify the line where he made his mistake. f(x) = 2x2 − 8x + 5 line 1: f(x) = 2(x2 − 8x) + 5 line 2: f(x) = 2(x2 − 8x + 16) + 5 − 32 line 3: f(x) = 2(x − 4)2 − 27

When y’all answer can y’all explain too !

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?