因式分解:25x^2 - 160x +192=0
问题描述:
因式分解:25x^2 - 160x +192=0
答
25x^2 - 160x +192=0
25x^2 - 160x+256 +192-256=0
(5X-16)^2-64=0
(5X-16)^2=64
5X-16=±8
X1= 4.8 X2=1.6