Question

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23. If a and ß are the zeroes of the quadratic polynomial f(x) = 5x2 – 8x – 4, then
evaluate: i) a - B
ii) + +
24. The sum of first n terms of an AP is given Sn 3n2 - n Find nth term and 12th term
nónical cavity of the
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nam​

Answer 1

$f(x) = 5x ^{2} - 8x - 4 \\ 1. \alpha - \beta = 12 \5 \\ 2. \alpha + \beta = 8 \5$