Telangana SCERT Solution Class VIII (8) Math Chapter 11 Algebraic Expressions Exercise 11.5
Contents
(1) Verify the identity (a + b)2 = a2 + 2ab + b2 geometrically by taking
(i) a = 2 units, b = 4 units
(ii) a = 3 units, b = 1 unit
(iii) a = 5 units, b = 2 unit
(2) Verify the identity (a – b)2 = a2 – 2ab + b2 geometrically by taking
(i) a = 3 units, b = 1 unit
(ii) a = 5 units, b = 2 units
(3) Verify the identity (a + b) (a – b) = a2 – b2 geometrically by taking
(i) a = 3 units, b = 2 units
(ii) a = 2 units, b = 1 units
a=2units,b=4units