解方程:(x²-3)²-3(3-x²)+2=0

解方程:(x²-3)²-3(3-x²)+2=0
解方程:(x²-3)²-3(3-x²)+2=0

解方程:(x²-3)²-3(3-x²)+2=0
(x²-3)²-3(3-x²)+2=0
(x²-3-1)(x²-3-2)=0
x²=4或x²=5
x=±2或x=±√5

(x²-3)²-3(3-x²)+2=0
﹙x²－3－1﹚﹙x²－3－2﹚＝0
﹙x－2﹚﹙x＋2﹚﹙x²－5﹚＝0
x1＝2
x2＝﹣2
x3＝√5
x4＝﹣√5.