Question

can someone explain this sum from chapter 2 polynomials class 9 and ncert exemplar ​

Answer 1

Answer:

polynomial : A mathematical expression whose variable power or exponent is a whole number.

Step-by-step explanation:

1.it is false because in its 2nd term there is a variable whose power is 1/2 ,which is not a whole number. As it doesn't complete the definition of polynomial so it is not a polynomial.

2.In question no. 2 when we solve or simplify the expression we get the answer as 6 + x. which is simply a whole number.

Answer 2

Answer:

here the question is asking to state true or false of the given statements or polynomials and also to justify your answer by if the given statement or polynomial is true then you have to prove how it became true and what's the relation.

the answer of question number (I) is false because the exponent of the variable is not a whole number.As we know that in a polynomial the exponent of the variable must be a whole number

The question number (ii) is true because though the exponent of the variable is in a form of fraction we can change it to a polynomial as given in the pic above