Mathematics > Standard Multiple Choice

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

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

(A) 40

(B) 18

(C) 9

(D) 4

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

正确答案>>>

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.