Why (a+b)^2 = a^2 + 2ab + b^2 Algebra tricks

[@jackduncan8561]

This lady is very gifted in teaching math. Can I sign up for a refresher course with you, Mam? Thanks, Jack.

[@shravanbommu7226]

Why can’t we explian like below: (a+b)2
(a+b)(a+b)=a2+ab+ba+b2
=a2+b2+2ab.

[@yaddaake]

Wow