Read the following SAT test question and then click on a button to select your answer.

　　If (t-2)^2 = 0, what is the value of (t+3)*(t+6)?

　　(A) 40

　　(B) 18

　　(C) 9

　　(D) 4

　　(E) It cannot be determined from the information given.

　　Explanation

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

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（编辑：马菲）