Question

A real number is a called zero of the polynomial f(x) if ,
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Answer 1

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

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

So, if x2−2x+1 is a polynomial, we know at x=1, the value of x2−2x+1=0, hence x=1 can be said as zero of x2−2x+1

Hence, the answer is p(α)=0.