169(x+3)²-196(x-2)²=0即169(x+3)²=196(x-2)²所以,(x+3)²/(x-2)²=196/169,所以（x+3)/(x+2)=±根号下(196/169)=±14/13当（x+3)/(x+2)=14/13时,x=67当（x+3)/(x+2)=-14/13时,x=-11/27...