求教GRE数学：twice the square of x equals 5 more than the product of 3 and x 问：比较x和1的大小

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求教GRE数学：twice the square of x equals 5 more than the product of 3 and x 问：比较x和1的大小
求教GRE数学：twice the square of x equals 5 more than the product of 3 and x 问：比较x和1的大小

求教GRE数学：twice the square of x equals 5 more than the product of 3 and x 问：比较x和1的大小
2x2=5+3x 解二次方程,（2x-5）（x+3）=0 x=5/2 or x=-3 所以答案选不确定
主要是读句子要读懂

选A，X大于1，2倍X二次方=5>3X，诚然X是大于1的

答案是不确定X一旦平方了就要考虑到正负的问题。

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