Question

11£®ÒÑÖª|3a-2b-12|+£¨a+2b+4£©²=0£®Ôò£¨¡¡¡¡£©

• A£® $\left\{\begin{array}{l}{a=0}\\{b=1}\end{array}\right.$
• B£® $\left\{\begin{array}{l}{a=2}\\{b=-3}\end{array}\right.$
• C£® $\left\{\begin{array}{l}{a=-3}\\{b=2}\end{array}\right.$
• D£® $\left\{\begin{array}{l}{a=-2}\\{b=-3}\end{array}\right.$

Answer 1

·ÖÎö ÀûÓ÷ǸºÊýµÄÐÔÖÊÁгö·½³Ì×飬Çó³ö·½³Ì×éµÄ½â¼´¿ÉµÃµ½aÓëbµÄÖµ£®

½â´ð ½â£º¡ß|3a-2b-12|+£¨a+2b+4£©²=0£¬
¡à$\left\{\begin{array}{l}{3a-2b=12}\\{a+2b=-4}\end{array}\right.$£¬
½âµÃ£º$\left\{\begin{array}{l}{a=2}\\{b=-3}\end{array}\right.$£®
¹ÊÑ¡£ºB£®

µãÆÀ ´ËÌ⿼²éÁ˽â¶þÔªÒ»´Î·½³Ì×飬ÀûÓÃÁËÏûÔªµÄ˼Ï룬ÏûÔªµÄ·½·¨ÓУº´úÈëÏûÔª·¨Óë¼Ó¼õÏûÔª·¨£®