6(a+b)²-9(a-b)²因式分解,
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 23:51:30
x)3HNTS64ֵHԅq^tOӎ$TΆ$smʹHHk%&i'AtZji@etd4aArfI0IPa]cPMnmyvPـ98=8`N 2
6(a+b)²-9(a-b)²因式分解,
6(a+b)²-9(a-b)²因式分解,
6(a+b)²-9(a-b)²因式分解,
=6*(a²+2ab+b²)-9*(a²-2ab+b²)
=6a²+12ab+6b²-9a²+18ab-9b²
=-3a²+30ab-3b²
=-3(a²-10ab+b²)
6(a+b)²-9(a-b)²
=6a²+12ab+6b²-9a²+18ab-9b²
=-3a²+30ab-3b²
=-3(a²-10ab+b²)