x² - 7x + 6 কে উৎপাদকে বিশ্লেষণ করলে কোনটি হবে? 

A (x-1) (x+6) 

B (x+1) (x+6) 

C (x+1) (x-6) 

D (x-1) (x-6)

Solution

Correct Answer: Option D

x² - 7x + 6
⇒ x² - 6x - x + 6
⇒ x(x - 6) - 1(x - 6)
⇒ (x - 1) (x - 6)

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