SAT考试就是美国的高考，也是比较大型的考试。对于国际考生来说，SAT考试也是申请美国院校的重要成绩。那么对于SAT数学部分，具体的美国高考都考察什么内容?出题方式是什么呢?下面小编为大家整理了详细的内容，供大家参考!

(a+3)(2a^2-5a+7)

Which of the following is equivalent to the expression above?

A.2a^3-5a+21

B.2a^3+a^2-8a+21

C.2a^3+6a^2-5a+7

D.2a^3+11a^2+22a+21

答案：B

解析：

Choice B is correct. When multiplying polynomials, be sure to multiply each term in the first polynomial by each term in the second polynomial.

This can be done as follows: (a+3)(2a^2-5a+7)=2a^3-5a^2+7a+6a^2-15a+21

Combine like terms to get:

2a^3+a^2-8a+21

The equivalent expression is 2a^3+a^2-8a+21.

Lisa gives her little brother Sam a 15-second (sec) head start in a 300-meter(m) race. During the race, Sam runs at an average speed of 5 m/sec and Lisa runs at an average speed of 8 m/sec, not including the head start. Which of the following best approximates the number of seconds that had passed when Lisa caught up to Sam?

A.5

B.25

C.40

D.55

答案：B

解析：

Choice B is correct.

以上就是关于“美国高考SAT试题数学”的内容，希望通过上述内容的学习，大家能够更好的了解SAT数学考试的真题内容，做好相关的备考工作。