x2 + 2ax - 2a - 1 এর একটি উৎপাদক -

A

(x + 2a - 1)

B

(x - 1)

C

(x - 2a + 1)

D

(x + 1)

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প্রশ্ন: x2 + 2ax - 2a - 1 এর একটি উৎপাদক -

সমাধান:
x2 + 2ax - 2a - 1
= (x2 - 1) + 2ax - 2a
= (x + 1)(x - 1) + 2a (x - 1)
= (x - 1)(x + 2a + 1)

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Updated: 1 month ago

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