# Please explain  Illustration: The quadratic polynomial p(x) has the following properties : p(x) can be positive or zero for all real numbers  p(1) = 0 and p(2) = 2 Then find the quadratic polynomial.  Sol: p(x) is positive or zero for all real numbers. Also p(1) = 0 Then we have p(x) = k(x-1)2, where k > 0 Now p(2) = 2$⇒$ k=2∴ p(x) = 2(x-1)2

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there is nothing to be explained in this question its too simple
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