x3 − 2x2, x2 - 4, xy - 2y এর গ.সা.গু. কত?

A x(x - 2)

B x - 2

C (x + 3)

D xy(x - y)

Solution

Correct Answer: Option B

১ম রাশি = x3 - 2x2 
= x2(x - 2)

২য় রাশি = x2 - 4
= x2 - 22 
= (x + 2)(x - 2)

৩য় রাশি = xy - 2y
= y(x - 2)

নির্ণেয় গ.সা.গু = (x - 2)

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