2. 外语
  3. Each of Questions 1 to 7 presents two quantities, Quantity A and Quantity B. Compare the two quantities. You may use additional

Each of Questions 1 to 7 presents two quantities, Quantity A and Quantity B. Compare the two quantities. You may use additional

admin2013-05-19  30
问题 Each of Questions 1 to 7 presents two quantities, Quantity A and Quantity B. Compare the two quantities. You may use additional information centered above the quantities if such information is given. Choose one of the following answer choices:
A if Quantity A is greater;
B if Quantity B is greater;
C if the two quantities are equal;
D if you cannot determine the relationship based on the given information.

选项 A、 
B、 
C、 
D、 
答案D
解析 The correct answer is D. To solve this problem, you should first expand Quantity A using the FOIL method:
Multiply the First terms: x2
Multiply the Outside terms: 2x
Multiply the Inside terms: 3x
Multiply the Last terms: 6
Now add the terms together: x2 + 5x+6. Quantity B is x2 + 6. Because the value of x could be either positive or negative, Quantity A could be either greater than or less than Quantity B. Therefore, you cannot determine a relationship between the two quantities.
转载请注明原文地址:https://jikaoti.com/ti/QEdYFFFM
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)