Question

If α and β are the zeroes of f(x) = 2x2 + 8x – 8, then prove that α + β – αβ = 0

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

a =2 , b = 8 , c = -8

α + β = -b/a

= -8/2

= -4 ---(1)

αβ = c/a

= -8/2

= -4 ---(2)

So.. α + β – αβ = - 4 - (-4) (from 1 and 2)

= - 4+ 4

= 0