engineering recuitment ICAR (IARI) Assistant (Pre + Mains) 2022 Mock Test Quantitative Aptitude Algebra Identities
If (7x + 4)3 + (3 - x)3 - 27(x - 5)3 = 9(7x + 4)(x - 3)(x - 5), then what is the value of \(\sqrt{x^2-51}\) ?
1
\(\frac{1}{3}\)
2
\(\frac{5}{3}\)
3
\(\frac{5}{2}\)
4
\(\frac{7}{3}\)