\(9x^2-30x+8=0\) के मूल पूर्ण वर्ग विधि से क्या होंगे?
What roots are obtained for \(9x^2-30x+8=0\) by completing square method?
Explanation opens after your attempt
Correct Answer
A. \(x=\frac{5\pm\sqrt{17}}{3}\)
Concept
Since (\left\(x-\frac{5}{3}\right\)2=\frac{17}{9}), \(x=\frac{5\pm\sqrt{17}}{3}\). In exams, write the square root with the denominator correctly.
Why this answer is correct
The correct answer is A. \(x=\frac{5\pm\sqrt{17}}{3}\). Since (\left\(x-\frac{5}{3}\right\)2=\frac{17}{9}), \(x=\frac{5\pm\sqrt{17}}{3}\). In exams, write the square root with the denominator correctly.
Exam Tip
(\left\(x-\frac{5}{3}\right\)2=\frac{17}{9}), इसलिए \(x=\frac{5\pm\sqrt{17}}{3}\) है। परीक्षा में वर्गमूल को हर के साथ सही लिखें।
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