解方程:(1)-6x^2-7x-2=0 (2)(x+3)(x-1)=5
问题描述:
解方程:(1)-6x^2-7x-2=0 (2)(x+3)(x-1)=5
答
⑴6X^2+7X+2=0
(3X+2)(2X+1)=0
X1=-2/3,X2=-1/2;
⑵X^2+2X-8=0
(X+4)(X-2)=0
X1=-4,X2=2.