左边的x在根号内吗?
应该是左边的x不在根号内
√2x-3x>5
(√2-3)x>5
∵√2-35/(√2-3)
=5(√2+3)/[(√2-3)(√2+3)]
=5(√2+3)/(-5)
=-√2-3
即x>-√2-3[(√2-3)(√2+3)]不应该是2-9,=-7嘛？就是-7x>-5/7(√2+3)