GMAT考试

【单选题】(3²+1)(81²+1)(9²+1)(3²-1)=
A、81⁴+1
B、9⁹-1
C、3¹⁶-1
D、3³²-1
E、3⁹⁶+1

网考网参考答案：C
网考网解析：
This question at first appears to be a monster, but you can simplify the statements by reordering them and stating all of the exponential numbers as powers of 3: (3 2 -1)(3 2 +1)(34+1)(3 8 +1). Then, you can scan through the answers and realize that 3 16 -1=(3 8 +1)(3 8 -1)=(3 8 +1)(3 4 +1)(3 4 -1)=(3 8 +1)(3 4 +1)(3 2 +1)(3 2 -1), which is the same as the statement in the question. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>