Question

if a=2,b=-8,c=5 find α+β and α.β​

Answer 1

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We know,

α+β = -b / c = 8 / 2 = 4

αβ = c / a = 5 / 2

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Answer 2

α+β = -b/a

α+β = -(-8) /2 = 4

α.β = c/a

α.β = 5/2