किस धनात्मक संख्या में (6) जोड़कर उसे मूल संख्या से गुणा करने पर (135) मिलता है?
For which positive number does adding (6) and multiplying by the original number give (135)?
Explanation opens after your attempt
A. (9)
Concept
If the number is (x), then (x(x+6)=135). From \(x^2+6x-135=0\), (x=9).
Why this answer is correct
The correct answer is A. (9). If the number is (x), then (x(x+6)=135). From \(x^2+6x-135=0\), (x=9).
Exam Tip
यदि संख्या (x) है, तो (x(x+6)=135)। \(x^2+6x-135=0\) से (x=9) है।
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