x² - y², (x + y)², x³ + y³ এর ল.সা.গু কত?
Solution
Correct Answer: Option D
১ম রাশি = x2 - y2
= (x + y)(x - y)
২য় রাশি =(x + y)2
=(x + y)(x + y)
৩য় রাশি = x3 + y3
= (x + y)(x2 - xy + y2)
নির্ণেয় ল.সা.গু = (x + y)(x + y)(x - y)(x2 - xy + y2)
= (x + y)2(x - y)(x2 - xy + y2)
= (x + y)(x - y)
২য় রাশি =(x + y)2
=(x + y)(x + y)
৩য় রাশি = x3 + y3
= (x + y)(x2 - xy + y2)
নির্ণেয় ল.সা.গু = (x + y)(x + y)(x - y)(x2 - xy + y2)
= (x + y)2(x - y)(x2 - xy + y2)
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