已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/24 15:53:44
已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值已知:a

已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值
已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值

已知:a=2999,b=2995,求a²-2ab+b²-8a+8b+16的值
a²-2ab+b²-8a+8b+16
=(a-b)²-8(a-b)+16
=(a-b-4)²
=(2999-2995-4)²
=0²
=0

a²-2ab+b²-8a+8b+16
=(a-b)^2-8(a-b)+16
=(a-b-4)^2
=(2999-2995-4)^2
=0

a²-2ab+b²-8a+8b+16
=(a-b)²-8(a-b)+16
=(a-b-4)²
=(2999-2995-4)²
=0