Mathematics · Quadratic Equations
The equations 2x2 + ax - 2 = 0 and x2 + x + 2a = 0 have exactly one common root. If a ≠ 0, then one of the roots of the equation ax2 - 4x - 2a = 0 is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-2 + √223✓
- 2-4 + √223
- 3-2
- 42
Correct answer
-2 + √223
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