题目是:P37 1. x²+x-6=0 (2)x²-√3x-1/4=0 (3)3x²-6-2=0 (4)4x²-6x=0 (5)x²+4x+8=4x+11 (6)x(2x-4x)=5-8x习题22.2第三题题目:(1)x²+10x+16=0 (3) x²-4√2 x+9=0