Which expression is equivalent to 3x−12y+223y−56x 3 x - 1 2 y + 2 2 3 y - 5 6 x ?

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

Equivalent to 3x−12y+223y−56x 3 x - 1 2 y + 2 2 3 y - 5 6 x is:

-168 x^2 - 27 x + 221 y (-168 x - 27) x + 221 y 221 y - 3 x (56 x + 9)

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.