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Is (7x^4-x^2+3x-2) a polynomial?

Answer and explanation

Correct answer: Yes, because all powers of x are non-negative integers

Yes, (7x^4-x^2+3x-2) is a polynomial because the powers of x are 4, 2, 1, and 0, all of which are non-negative integers. The constant term -2 can be written as -2x^0, so it is also valid. Having four terms or degree 4 does not prevent an expression from being a polynomial. Exam tip: in a polynomial, variable exponents must be non-negative integers such as 0, 1, 2, and so on.

Related tags

PolynomialsDefinition Of PolynomialNon-Negative ExponentsConstant TermGrade 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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