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The sum of a number and its square is (210). What is the positive number?एक संख्या और उसके वर्ग का योग (210) है। धनात्मक संख्या क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (14)(14)
(x^2+x=210) gives (x^2+x-210=0), whose positive solution is (14). While factoring, check factors of (210).(x^2+x=210) से (x^2+x-210=0), जिसका धनात्मक हल (14) है। गुणनखंड बनाते समय (210) के गुणनखंड देखें।
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