SAT2数学题一道,请求详解Which of the following describes the right and left behavior of the graph of f(x)= -3x^7 +2x^5 -3x +6?A Rises right and leftB Falls right and leftC Falls left,rise rightD Rises left,falls rightE Cannot be determined

SAT2数学题一道,请求详解Which of the following describes the right and left behavior of the graph of f(x)= -3x^7 +2x^5 -3x +6?A Rises right and leftB Falls right and leftC Falls left,rise rightD Rises left,falls rightE Cannot be determined 一道数学题,需详解, 请详解一道数学题 一道数学题,求详解 一道数学题15求详解, 一道初三数学题,求详解! 一道数学题,急求详解 急!请求一道简单的初一数学题! 一道英语试题请求详解I have many friends ,-------some are businessmen .A．of them B．from which C．who of D．of whom 请求详解 请求详解 Sat2 一道物理题 一道英文(sat2)物理题 一道sat2数学题,the only prime factors of a number 'n' are 2,5,7,and 17.which of the following could not be a factor of a）10 b) 20 c) 25 d)30 e)34 一道sat2化学题,which molecule is a polar molecule?水,甲烷,二氧化碳 一道数学题,第二题怎做,求详解 问一道数学题,求详解,第六题 高一一道数学题求求详解 一道高一数学题,求详解.