Q4 of 25 Page 2

If α and β are the zeros of the polynomial 2x2 + 7x + 5, write the value of α + β + αβ. (CBSE 2010)

It is given in the question that, zeros of the polynomial 2x2 + 7x + 5 are

Now by using the relationship between the zeros of the quadratic polynomial we have:


Sum of zeros = and product of zeros =


= and


∴

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