3x2 + x − 10 এর একটি উৎপাদক x + 2 হলে অপরটি কত?

A 2x + 5

B 2x - 5

C 3x - 5

D 3x + 5

Solution

Correct Answer: Option C

3x+ x - 10
= 3x+ 6x - 5x - 10
= 3x(x+2) - 5(x+2)
= (x+2)(3x - 5)

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