Algebramedium · Past Paper
If α and β are roots of 2x^2 - 4x + 1 = 0, find α + β + αβ.
A2.5
B1.5
C2
D4.5
✓ Correct Answer: A — 2.5
α+β = 4/2 = 2. αβ = 1/2 = 0.5. Sum is 2 + 0.5 = 2.5.
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✓ Correct Answer: A — 2.5
α+β = 4/2 = 2. αβ = 1/2 = 0.5. Sum is 2 + 0.5 = 2.5.
Share this question