﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 06:45:57
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44

﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44

﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
=(-2)*11*(-9)*11+11*(-6)*11-3*11*4*11
=18*11²-6*11²-12*11²
=(18-6-12)*11²
=0

=22*99-22*33-22*66=22*(99-33-66)=0