早教吧 育儿知识 作业答案 考试题库 百科 知识分享

因式分解:xy(xy-12)+36,-1/2a4次方b4次方+8

题目详情
因式分解:xy(xy-12)+36,-1/2a4次方b4次方+8
▼优质解答
答案和解析
xy(xy-12)+36
=(xy)方-12xy+36
=(xy-6)方
,-1/2a4次方b4次方+8
=-1/2 (a4次方b4次方-16)
=-1/2 (a方b方+4)(a方b方-4)
=-1/2 (a方b方+4)(ab+2)(ab-2)