Question

22. If a, ß are the zeroes of the polynomial 2y2 + 7y + 5, then write the value of a + b + ab.​

Answer 1

Answer:

Let p(x) = 2y2 + 7y + 5

On comparing with general form of a quadratic equation, we get

a = 2, b = 7 and c = 5

Recall that sum of roots (α + β) = (– b/a) = (– 7/2)

Product of roots (αβ) = (c/a) = (5/2)

Consider, (α + β) + (αβ) = (– 7/2) + (5/2) = (– 2/2) = – 1

Step-by-step explanation:

Therefote your answer is -1

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