2(a^2b+ab^2)-2(a^2b-1)-2ab^2-1,其中a=-7分之3,b=5分之2
2(a^2b+ab^2)-2(a^2b-1)-2ab^2-1
=2a^2b+2ab^2-2a^2b+2-2ab^2-1
=(2a^2b-2a^2b)+(2ab^2-2ab^2)+2-1
=2-1
=1
“^”是什么意思