450^2-900*350+350^2

来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/31 00:08:09
450^2-900*350+350^2450^2-900*350+350^2450^2-900*350+350^2450*450-900*350+350*350=450*450-2*450*350+3

450^2-900*350+350^2
450^2-900*350+350^2

450^2-900*350+350^2
450*450-900*350+350*350
=450*450-2*450*350+350*350
=(450-350)*(450-350)
=100*100
=10000