Question

verify the identity (a+b) (a-b)=a^2-b^2
Q)i)a=3 units ,b=2 units
ii)a=2units,b=1 unit

Answer 1

Answer:

i)(3+2)(3-2) = 3^2 - 2^2

LHS=5

RHS=9 - 4 =5

LHS =RHS

ii)(2+1)(2-1) = 2^2 - 1^2

LHS=3

RHS=4 - 1 =3

LHS =RHS

Step-by-step explanation: