Question

which of the following expression are polynomials in one variable and which are not ? State reasons for your answer.(i) y²+√2 (ii) y+2/y (iii) 4√t+9 (iv) 5x-4 (v) 2√x -5x+6x² (vi) 3x+2​

Answer 1

only (v)2√x-5x+6x² is polynomial and others are not