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1. $a + b, a^{2} - b^{2}$

A. $a^{2} - b^{2}$
B. $a^{2} - b^{2}$
C. $a^{2} - b^{2}$
D. $a^{2} - b^{2}$

Answer: Option D

Explanation:

১ম রাশি = a + b

২য় রাশি = a2 - b2 = (a + b) ( a - b)

৩য় রাশি = a3 + b3 = ( a + b) ( a2 - ab + b2)

গ.সা.গু = a + b

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