Question: If x is an even integer, which of the following is an even integer?
Options:
(A) 3x-3
(B) x+x^2
(C) 5x-3
(D) 2x+1
(E) 9x-5 Random thoughts:
Plug in an even integer; in this case 2
(3*2)-3 = 6-3 = 3 Odd
2+2^2 = 6 Even
(5*2)-3 = 10 - 3 = 7 Odd
(2*2)+1 = 4 + 1 = 5 Odd
(9*2)-5 = 18 - 5 = 13 Odd The final answer: (B).