Q8 of 109 Page 2

If α and β are the zeros of the quadratic polynomial , find the value of

.

Let and β are the roots of the given eqn


Sum of the roots = = = = 3


Product of the roots = = =


= +3 β = +3 β


Using (a + b)2 = a2 + b2 + 2ab


⇒ + = 8


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