a-b=3,ad=-1.(4a-5b-ab)-(2a-3b+5ab)的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 11:04:13
![a-b=3,ad=-1.(4a-5b-ab)-(2a-3b+5ab)的值](/uploads/image/z/1620387-27-7.jpg?t=a-b%3D3%2Cad%3D-1.%284a-5b-ab%29-%282a-3b%2B5ab%29%E7%9A%84%E5%80%BC)
xP10TTIHHI3 ~(`%o 9
j=#q:^~ywsݷqZe hpglYftJ766֧7Nd)|a*z<ϩpCB>٢/%e)B]yn6YܡhYqk
a-b=3,ad=-1.(4a-5b-ab)-(2a-3b+5ab)的值
a-b=3,ad=-1.(4a-5b-ab)-(2a-3b+5ab)的值
a-b=3,ad=-1.(4a-5b-ab)-(2a-3b+5ab)的值
(4a-5b-ab)-(2a-3b+5ab)
= 4a - 5b - ab - 2a + 3b - 5ab
= 2a - 2b - 6ab
=2(a-b) - 6ab
= 6 + 6
=12
(4a-5b-ab)-(2a-3b+5ab) = 2a-2b-6ab = 2(a-b)-6ab = 2X3-6X(-1)= 12
(5a-5b-ab)-a-(2a-3b+5ab)=(5a-5b-ab)-a-2a+3b-5ab=
(5a-5b-ab)-(3a-3b+5ab)=15+1-(9-5)=12