If α, β are roots of the equation 2x^2 - 4x + 5 = 0, then α^2β + αβ^2 = ____?
- -1
- 2
- 5
- None of these
Explanation
Using Vieta's formulas, we know that α + β = 4/2 = 2 and αβ = 5/2.
Now, α^2β + αβ^2 = αβ(α + β) = (5/2)(2) = 5.
Related MCQs
- (x+5)(x−4)/(x−2)(x+2)
- x+5/x+2
- x−4/x−2
- x+5/x−2
اس سوال کو وضاحت کے ساتھ پڑھیں
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