已知a+b=A,ab=A+2008,1-2(a+ab)+(ab-2b)=3A.你能确定a+b与ab的值吗?

1-2(a+ab)+(ab-2b)=3A
1-2a-2ab+ab-2b=3A
1-2(a+b)-ab=3A
1-2A-(A+2008)=3A
1-2A-A-2008=3A
6A=-2007
A=-334.5
a+b=A=-334.5
ab=A+2008=1673.5