作业帮①﹙χ²－2y²－z²﹚－﹙﹣y²＋3χ²－z²﹚＋﹙5χ²－y²＋2z²﹚=?②﹣﹛2a²b－[3abc－﹙4ab²－a²b﹚]﹜＝?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/08 12:42:02
![①﹙χ²－2y²－z²﹚－﹙﹣y²＋3χ²－z²﹚＋﹙5χ²－y²＋2z²﹚=?②﹣﹛2a²b－[3abc－﹙4ab²－a²b﹚]﹜＝?](/uploads/image/z/6851942-62-2.jpg?t=%E2%91%A0%EF%B9%99%CF%87%26%23178%3B%EF%BC%8D2y%26%23178%3B%EF%BC%8Dz%26%23178%3B%EF%B9%9A%EF%BC%8D%EF%B9%99%EF%B9%A3y%26%23178%3B%EF%BC%8B3%CF%87%26%23178%3B%EF%BC%8Dz%26%23178%3B%EF%B9%9A%EF%BC%8B%EF%B9%995%CF%87%26%23178%3B%EF%BC%8Dy%26%23178%3B%EF%BC%8B2z%26%23178%3B%EF%B9%9A%3D%3F%E2%91%A1%EF%B9%A3%EF%B9%9B2a%26%23178%3Bb%EF%BC%8D%5B3abc%EF%BC%8D%EF%B9%994ab%26%23178%3B%EF%BC%8Da%26%23178%3Bb%EF%B9%9A%5D%EF%B9%9C%EF%BC%9D%3F)
①﹙χ²－2y²－z²﹚－﹙﹣y²＋3χ²－z²﹚＋﹙5χ²－y²＋2z²﹚=?②﹣﹛2a²b－[3abc－﹙4ab²－a²b﹚]﹜＝?
①﹙χ²－2y²－z²﹚－﹙﹣y²＋3χ²－z²﹚＋﹙5χ²－y²＋2z²﹚=?
②﹣﹛2a²b－[3abc－﹙4ab²－a²b﹚]﹜＝?
①﹙χ²－2y²－z²﹚－﹙﹣y²＋3χ²－z²﹚＋﹙5χ²－y²＋2z²﹚=?②﹣﹛2a²b－[3abc－﹙4ab²－a²b﹚]﹜＝?
1 3x方-2y方+2z方