a2 - 4a - 45 এর উৎপাদকগুলো হলো- 

A

(a - 9)(a + 5) 

B

(a + 9)(a + 5) 

C

(a - 15)(a + 3) 

D

(a - 9)(a - 3)

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Updated: 3 months ago

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