1:58Use Identity (a+b)^2=a^2+2ab+b^2 to write the expressions for the following.(i) (m + 3)²mathsci academy20 viewsView & Download
2:24a square minus b square || (a-b)(a+b)=a^2-b^2 || || (4a-7b)(4a+7b) #mathmatiqsMuhammad Irshad0 viewsView & Download
