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Question

Find a quadratic polynomial whose sum and product respectively of the zeros are as given. Also, find the zeros of these polynomials by
83,43

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Solution

Let a and b be the zeros of the required polynomial.
Given,
a+b=83.....(1) and ab=43......(2).
Now the polynomial whose zeros are a and b be
x2(a+b)x+ab
=x2+83x+43.[Using (1) and (2)].
Now solving (1) and (2) we get,

a=23 or 2 and b=2 or 23.

So, 23 and 2 are the zeros of the polynomial.

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