If x² - 4x + 3 = 0, then what is the value of (x - 2)²?

A -1

C 1

D 3

Solution

Correct Answer: Option C

দেওয়া আছে ,
 x² - 4x + 3 = 0
বা, x² - 3x-x+3=0
বা,x(x-3)-1(x-3)=0
বা,(x-3)(x-1)=0
অতএব,x=1,3
অতএব,x=1 হলে (x-2)² =(1-2)² =(-1)² =1
এবং x=3 হলে (3-2)² =(1)² =1
অতএব,(x-2)² এর মান 1

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