if a and b are the zeros of the polynomial q(x)=x×x-2x+6 then find the value of a×a+b×b
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we have to find a²+b²
a²+b²= [(a+b)²-2ab]
=(2)²-(2×6) becoz [a+b is sum of polynomial which is equal to (- coefficient of x/ coefficient of x²) and a×b is the product of polynomial which is equal to ( constant term/coefficient of x²)
=4-12
=-8 ans
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