Mathematics · Quadratic Equations
Let a, b, c be in arithmetic progression. Let the centroid of the triangle with vertices (a, c), (2, b) and (a, b) be (10/3, 7/3). If α, β are the roots of the equation ax2 + bx + 1 = 0, then the value of α2 + β2 - αβ is:
- 171256
- 2-69256✓
- 369256
- 4-71256
Correct answer
-69256
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