(X-1)(X-5)=-3 (X+1)²=4X_数学解答

(X-1)(X-5)=-3 (X+1)²=4X

人气：115 ℃　时间：2020-02-03 23:54:20

解答

(X-1)(X-5)=-3
X²-6X+5=-3
X²-6X+8=0
(X-2)(X-4)=0
X=2,X=4
(X+1)²=4X
X²+2X+1=4X
X²-2X+1=0
(X-1)²=0
X-1=0
X=1