एक संख्या और उसके वर्ग का योग (506) है। धनात्मक संख्या क्या है?
The sum of a number and its square is (506). What is the positive number?
Explanation opens after your attempt
C. (22)
Concept
\(x^2+x=506\) gives \(x^2+x-506=0\), whose positive solution is (22). While factoring, check factors of (506).
Why this answer is correct
The correct answer is C. (22). \(x^2+x=506\) gives \(x^2+x-506=0\), whose positive solution is (22). While factoring, check factors of (506).
Exam Tip
\(x^2+x=506\) से \(x^2+x-506=0\), जिसका धनात्मक हल (22) है। गुणनखंड बनाते समय (506) के गुणनखंड देखें।
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