Question

2-5√x State whether the given algebraic expression are polynomials? Justify.

Answer 1

2 - 5rootx

= 2 - 5^(1/2)

No, it is not a polynomial.

Because it has a power (1/2) that is not an integer.

Answer 2

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An algebraic expression in

which the variables involved

have only non-negative integral

powers is called a polynomial .

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Here ,

2 - 5√x is not a polynomial

because , the second term

- 5x½ is a term with an

exponent that is not a

non-negative integer . ( i.e 1/2 )

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