−4 and 9 are the sum and product of the zeros respectively of a quadratic polynomial. Find the quadratic polynomial.
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Solution
We know that the formula for a quadratic polynomial is:
p(x)=x2−(Sum of the zeroes)x+(Product of the zeroes)=0
We are given that the sum of the zeroes is −4 and the product of the zeroes is 9, therefore, following the above formula, the required quadratic polynomial is: