Question

A real number a is called a zero of the polynomial f(x) if

Answer 1

A real number a is called is zero of the polynomial f(x) when we put the value of a in the f(x) then it will make it zero.

Answer 2

given : A real number a is called a zero of the polynomial f(x) if

explanation:

Any real number a is said to be a zero of polynomial f(x) if f(x) =0

So, if $x^2-2x+1$   is a polynomial, we know at x=1

The value of $x^2-2x+1$ = 0

hence x=1 can be said as zero of $x^2-2x+1$

Zero can be seen as the value of x for which the polynomial takes the value as zero.

hence , f(x) =0

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