Five mark example problem — task. Mathematics State Board, Class 9.

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If

$f(x) = x^2 - 4x + 3$ , then find the values of

$f(1)$ ,

$f(-1)$ ,

$f(2)$ ,

$f(3)$ . Also, find the zeros of the polynomial

$f(x)$ .

Answer:

$f(1) =$

$f(-1) =$

$f(2) =$

$f(3) =$

The zeros of the polynomial

$f(x)$ are and .

(Note: For zeros of polynomial, enter the values in ascending order.)

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