4(x+y),10(x-y) এবং 12(x²-y²) এর গ.সা.গু কত ?

A x-y

B x+y

C 2

D 12(x²-y²)

Solution

Correct Answer: Option C

১ম রাশি =4(x+y)
              =2×2×(x+y)
২য় রাশি =10(x-y)
               =2×5×(x-y)
৩য় রাশি = 12(x²-y²)
             =2×2×3×(x+y)(x-y)
অতএব ,গ.সা.গু =2

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