(x-2）²=4（2x+3）²解方程
人气：278 ℃ 时间：2020-04-13 06:45:54
解答
(x-2）²=4（2x+3）²
(x-2）²- [2（2x+3）]²=0
[x-2+4x+6][x-2-4x-6]=0
[5x+4][-3x-8]=0
x1=-4/5x2=-8/3
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