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Quadratic Equations — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSQuadratic Equations2 Marks
Question
Show the following quadratic equation by factorization method:
x2 + (1 − 2i) x − 2i = 0
✓

Answer

x2 + (1 − 2i) x − 2i = 0

⇒ x2 + x - 2i - 2i = 0

⇒ x (x + 1) - 2i (x + 1) = 0

⇒ (x + 2i) (x + 1) = 0

⇒ x = 2i, -1

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