x2 - 7x + 12 = কত?      

A    (x - 4)(x - 3)

B    (x + 4)(x + 3)

C    (x + 3)(x - 4)

D    (x + 4)(x - 3)      

Solution

Correct Answer: Option A

 

X2-7X+12 =x2-3X-4X+12 =x(x-3)-4(x-3) =(x-3)(x-4)

           

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