Question

which of the following expression is polynomial , state whether it is a polynomial in one variable or not :
(1) x²-15x+50
(2) x³+3x²y+3xy²+y
(3) x²+y²+z²+2xy+2yx+2zx
(4)5x²+11x-2√x
(5) 3x²+5x-7+8/x
(6) √3x²+ πx- 9​

Answer 1

1,4,5 are one variable polynomial.