x^2+(2x)^2-3x=0
5x^2-3x=
x(5x-3)=0
x=0或x=3/5
猜你喜欢
- 1塞翁失马的启示
- 2A:I didn’t have time for lunch today.B:I didn’t _______.A neither B too C either
- 3She gave me a determined look-the kind that said she would not change her mi
- 4在一个长25厘米、宽12厘米、高20厘米的长方体玻璃缸中放入一个棱长9厘米的正方体铁块，然后加满水．当铁块从水中取出时，玻璃缸中的水会下降多少厘米？
- 5I is being repaired by a friend of my father's 能用by my father's friend吗?
- 6最简二次根式a2+3与5a−3是同类二次根式，则a为_．
- 7已知x,y满足根号下的2x—3y—1+|x—2y+2|=0求2x—5分之7y的平方根
- 8为什么热水瓶的软木塞会自己弹起来
- 9若x^2+xy-2y^2=0那么分式3x^2+xy+6y^2/x^2+y^2的值是多少?
- 10恒温恒容下,将2mol A气体和2mol B气体通入体积为2L的密闭容器中发生如下反应：2A（g）＋B（g）xC（g）＋