Consider the following expressions: 1) \(x + {x^2} - \frac{1}{x}\)2) – McqOptions

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1.	Consider the following expressions: 1) \(x + {x^2} - \frac{1}{x}\)2) \(\sqrt {a{x^2} + bx + x - c + \frac{d}{x} - \frac{e}{{{x^2}}}} \)3) 3x2 - 5x + ab4) \(\frac{2}{{{x^2} - ax + {b^3}}}\)5) \(\frac{1}{x} - \frac{2}{{x + 5}}\)Which of the above are rational expressions?
A.	1, 4 and 5 only
B.	1, 3, 4 and 5 only
C.	2, 4 and 5 only
D.	1 and 2 only
Answer» B. 1, 3, 4 and 5 only

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