(X-3)平方-(X+3)*(X-3)=(X+1)*(X+2)-(X-1)*(X+4)的解_数学解答

(X-3)平方-(X+3)*(X-3)=(X+1)*(X+2)-(X-1)*(X+4)的解

人气：238 ℃　时间：2020-01-05 14:11:12

解答

(X-3)平方-(X+3)*(X-3)=(X+1)*(X+2)-(X-1)*(X+4)
x^2-6x+9-x^2+9=x^2+3x+2-x^2-3x+4
-6x+18=6
6x=18-6
6x=12
x=2