Question

Write 5 expressions which are not polynomials. Justify your answers

Answer 1

1. 5√x + x√2
here the exponent of the first term is 1/2 which is not a whole number therefore it is not a polynomial

2. y+ 2/y
here the exponent of the second term is -1 which is not a whole number and so it is not a polynomial

3. x²+1/x².
here the exponent of the second term is -2 which is not a whole number and so it is not a polynomial

4. a²+ b³+c^4
it is not a polynomial in one variable as three variables a,b,c occur in it.

5. 1/x (x-1)(x-2)
here the exponent of the first term is -1 which is not a whole number and so it is not a polynomial