engineering recuitment UPSSSC Assistant Boring Technician 2022 Mock Test Quantitative Aptitude Algebra Identities
If x2 – \(3\sqrt {2}x \) + 1 = 0, then what is the value of \( {x^3} + \left( {\frac{1}{{{x^3}}}} \right)\) ?
1
\(30\sqrt 2 \)
2
\(30\sqrt 6 \)
3
\(45\sqrt 2 \)
4
\(15\sqrt 6 \)