\(5x^2+9x-2=0\) के मूल क्या हैं?
What are the roots of \(5x^2+9x-2=0\)?
Explanation opens after your attempt
A. \(x=\frac{1}{5},-2\)
Concept
(5x-2+9x-2=(5x-1)(x+2)), so the roots are \(\frac{1}{5}\) and (-2). In exams, correct standard form is very important.
Why this answer is correct
The correct answer is A. \(x=\frac{1}{5},-2\). (5x-2+9x-2=(5x-1)(x+2)), so the roots are \(\frac{1}{5}\) and (-2). In exams, correct standard form is very important.
Exam Tip
(5x-2+9x-2=(5x-1)(x+2)), इसलिए मूल \(\frac{1}{5}\) और (-2) हैं। परीक्षा में सही मानक रूप बहुत जरूरी है।
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