SAT I 一日一问：2014年9月1日

The correct answer is A

Explanation

Since (t minus 2)^2 = (t minus 2) times (t minus 2) = 0, it follows that t minus 2 = 0, and so t = 2. Therefore, (t + 3) times (t+6) = (2+3) times (2+6) = (5) times (8) = 40.