Question

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Tub RHS.
2
2S
(a-b)?
a²-
2 ab + b2​

Answer 1

(a+b)
2
≡a
2
+2ab+b
2

Draw a square with side a+b ie 3+2
LHS Area of whole square
=(3+2)
2
=5
2
=25
RHS = Area of square with side 3 units + Area of square with side 3 units + Area of rectangle with side 3,2 units + Area of rectangle with side 2,3 units
=3
2
+2
2
+3×2+3×2
=9+4+6+6=25
LHS=RHS.