解:2x²+7x-1=6x+2 2x²+x-3=0 (2x+3)(x-1 )=0 ∴ x1=-3/2, x2=1
2x的平方+7x-1=6x+2 解:2x平方+7x-6x-1-2=0 2x平方+x-3=0 x1=-1+根号1平方-4*2*(-3)/2*2=-1 x2=-3/2
2x�0�5+7x-1=6x+22x�0�5+x-3=0(2x+3)(x-1 )=0x1=-3/2 x2=1