The algebraic expression that is a polynomial is -6x³ + x² - √5
<h3>How to know a polynomial?</h3>
Polynomials are algebraic expressions that consist of variables and coefficients.
In a simpler term a polynomial can have constants, variables and exponents, but never division by a variable.
Therefore, the polynomial among the options is as follows:
-6x³ + x² - √5
learn more on polynomial here: brainly.com/question/12401404
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