因式分解:25x^2 - 160x +192=0_数学解答

因式分解:25x^2 - 160x +192=0

人气：324 ℃　时间：2020-03-04 03:21:45

解答

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