6a的2次方减5a(-a加2b-1)加4a(-3a-2分之5b-4分之3等于多少

2025-03-06 14:14:30
推荐回答(1个)
回答1:

6a的2次方减5a(-a加2b-1)加4a(-3a-2分之5b-4分之3)
=6a²+5a²-10ab+5a-12a²-10ab-3a
=a²-20ab+2a