(2a²-ab+1)-2(a-2ab+3)

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 20:53:40
(2a²-ab+1)-2(a-2ab+3)
x)0JTS64ML65H525mIP$m" 6IL5=ݹٴ@1D]S<;g1

(2a²-ab+1)-2(a-2ab+3)
(2a²-ab+1)-2(a-2ab+3)

(2a²-ab+1)-2(a-2ab+3)
(2a²-ab+1)-2(a-2ab+3)
=2a²-ab+1-2a+4ab-6
=2a平方+3ab-2a-5