যদি p4 + p2q2 + q4 = 75 এবং p2 + pq + q2 = 15 হয়, তবে p2 - pq + q2 এর মান কত?

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A

5

B

15

C

10

D

9

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Updated: 20 hours ago

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a2 - 4a - 45 এর উৎপাদকগুলো হলো- 

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A

(a - 9)(a + 5) 

B

(a + 9)(a + 5) 

C

(a - 15)(a + 3) 

D

(a - 9)(a - 3)

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a+1

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9

B

18

C

27

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15

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