Same chapter3 marksDifficulty: Medium
Solve x2 − 2x + 5 = 0.
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3 marksDifficulty: Medium
Solve the equation x2 + 4 = 0 over the complex numbers.
Original Khojo Papers practice question — not from a past board paper.
Answer
x = 2i or x = −2i
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
x2 = −4, so x = ±√(−4) = ±2i.
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