Compute the following in head:

( ![]()
using identity (x+y) (u+v) = xu+xv+yu+yv
=(2
+(
) + (![]()
= 2+
+
+![]()
= 2+
+![]()
= ![]()
![]()
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.
