Question

2.
সরল করি [ সূত্রের সাহায্যে]
(i) (a + b) (a – b) (a2 + ab + b2) (a2 – ab + b2)​

Answer 1

Answer:

(a+b)(a-b)(a^2+ab+b^2)(a^2-ab+b^2)

=(a+b)(a^2-ab+b^2)(a-b)(a^2+ab+b^2)

=(a^3+b^3)(a^3-b^3)

=(a^3)^2-(b^3)^2

=a^6-b^6