解方程2y平方加2y-3=0,
问题描述:
解方程2y平方加2y-3=0,
答
2y²+2y-3=0
(2y+3)(y-1)=0
y1=-3/2,y2=1
明白请采纳,
有新问题请求助,那2(x-1)平方=x平方-1怎么做2(x-1)²=x²-12x²-4x+2=x²-1x²-4x+3=0(x-1)(x-3)=0x1=1,x2=3