Question

which of the following expressions are polynomials in one/two variables and which are not. Given reasons for you answer a)5√x+x√5​

Answer 1

Answer:

yes it is polynomial because it has x

Answer 2

Step-by-step explanation:

Answer

(i)3x² −2x+5 Polynomial is one variable

Here x is the only variable.

(ii)x² + 2

Polynomial is one variable

Here x is the only variable.

(iii)p² −3p+q Polynomial with two variables.

Here p&q are variables.

(iv)y+ y²

Not a polynomial

∵y is having −ve power in second term.

(v)5x +x 5

Not a polynomial

∵x is having fractional power in first term.

(vi)x 100 +y 100

Polynomial with two variables.

Here x&y are variables.