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प्रश्न
State whether the given algebraic expression are polynomial? Justify.
`2 - 5 sqrt x`
उत्तर
In an algebraic expression, if the powers of the variables are whole numbers then the algebraic expression is a polynomial.
`2 - 5 sqrt x = 2 - 5x^(1/2)`
Here, the power of x is `1/2`, which is not a whole number.
So, `2 - 5 sqrt x` is not a polynomial.
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