2(y+3/4)²-3-9/8=0è¿éä¸æ¯åºè¯¥æ¯2ï¼y+3/4ï¼²-3-9/16=0ä¹ï¼
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2y²+3y-3=0(用配方法)
2(y²+3y/2)-3=0;
2(y+3/4)²-3-9/8=0;
2(y+3/4)²=33/8;
(y+3/4)²=33/16;
y+3/4=±√33/4;
y=-3/4±√33/4;
这个么
是的哦~~~