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(5+3i) , মূল (root) বিশিষ্ট দ্বিঘাত সমীকরণ (quadratic equation ) টি-হবে -

x^{2} - 10 x + 34 = 0

x^{2} - 5 x - 34 = 0

x^{2} + 5 x - 34 = 0

x^{2} + 5 x + 34 = 0

ANS : 1

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