Question

verify identity(a+b)²≡a²+2ab+b²geometrical by taking
a=5units,b=2units​

Answer 1

Step-by-step explanation:

= (5)² + 2( 5x2) + (2)²

= 25 + 20 + 4

= 49 units

Answer 2

Step-by-step explanation:

(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.

Hence verified.