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Which polynomial has no (x^2) term but has degree (4)?

Answer and explanation

Correct answer: (x^4+3x-2)

A polynomial may contain some powers of the variable and omit others. Its degree is the greatest exponent having a non-zero coefficient. Therefore, the absence of an x^2 term does not prevent another term from having a larger exponent. A square root or a negative exponent would create a different issue, but neither is needed here.

In option A, the polynomial is x^4+3x-2. The x^2 term is absent, so its coefficient is 0, while the coefficient of x^4 is 1, which is non-zero. The greatest exponent is therefore 4. Option B has degree 2, option C is not a polynomial because of the negative exponent, and option D is not a polynomial because of the square-root term. Thus A is correct.

Related tags

Definition-PolynomialMissing-TermDegree-Four

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