Question

hey what's the formula of 4ab ?​

Answer 1

Answer:

Hey this what I got.

Step-by-step explanation:

If you are looking for detail on how the formula (a-b)²=(a+b)²-4ab and (a+b)²=(a-b)²+4ab comes this video is for you as a beginner. For advanced students, this video is helpful because it includes Algebraic explanation