Teaching UPTET 2023 (Paper 1 & 2) Mock Test Quantitative Aptitude Algebra Quadratic Equation

यदि \(\rm3x+\frac{2}{x}=7\), तब \(\rm \left(9x^2-\frac{4}{x^2}\right)\)का मान ज्ञात कीजिए। 

1
25
2
35
3
49
4
30
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