What should be added to the polynomial $x^{2} - 5 x + 4$ , so that 3 is the zero of the resulting polynomial?

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answer is A.

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Detailed Solution

Given equation is,

P (x) = x^{2} - 5 x + 4 At x = 3 P (3) = 3^{2} - 5^{*} 3 + 4 P (3) = 9 - 15 + 4 P (3) = - 2

Here, -2 is remaining number,
Now if we want to make 3 as the polynomial's zero, we have to add 2 in the given polynomial.
Thus, the polynomial become,
Option 1 is correct.

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