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Solve the equation x2 + 3x + 9 = 0 - Mathematics

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प्रश्न

Solve the equation x2 + 3x + 9 = 0

योग

उत्तर

The given quadratic equation is x2 + 3x + 9 = 0

On comparing the given equation with ax2 + bx + c = 0, we obtain

a = 1, b = 3, and c = 9

Therefore, the discriminant of the given equation is

D = b2 – 4ac = 32 – 4 × 1 × 9 = 9 – 36 = –27

Therefore, the required solutions are

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अध्याय 5: Complex Numbers and Quadratic Equations - Exercise 5.3 [पृष्ठ १०९]

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एनसीईआरटी Mathematics [English] Class 11
अध्याय 5 Complex Numbers and Quadratic Equations
Exercise 5.3 | Q 3 | पृष्ठ १०९

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