6a2 + a – 15 এর একটি উৎপাদক নিচের কোনটি?

A (2a-3)

B (2a+3)

C (a-3)

D 3a+2

Solution

Correct Answer: Option A

6a²+a-15

=6a²+10a-9a-15

=2a(3a+5)-3(3a+5)

=(3a+5)(2a-3)

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