(x2 - 6x + 5)/(x - 1) এর মান কত?
সমাধান
সঠিক উত্তর: Option B
(x2 - 6x + 5)/(x - 1)
= (x2 - 5x - x + 5)/(x - 1)
= {x(x - 5) - 1(x - 5)}/(x - 1)
= (x - 5)(x - 1)/(x - 1)
= x - 5
= (x2 - 5x - x + 5)/(x - 1)
= {x(x - 5) - 1(x - 5)}/(x - 1)
= (x - 5)(x - 1)/(x - 1)
= x - 5
