xa2 - 144xb2 এর উৎপাদক কোনটি?

A 2b - a

B a - 2b

C x 

D a + 2b

Solution

Correct Answer: Option C

xa2 - 144xb2 
= x (a2 - 144b2)
= x {a2 - (12b)2}
= x (a + 12b) (a - 12b)

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