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What is the degree of 11x⁵ − 3x² + 8?

Answer and explanation

Correct answer: 5

The governing concept is the degree of a non-zero polynomial in one variable. It is the greatest exponent of the variable whose coefficient is non-zero. In 11x⁵ − 3x² + 8, the powers of x are 5, 2, and 0. The coefficient of x⁵ is 11, which is non-zero, so the highest relevant power is 5. Therefore, the degree of the polynomial is 5, making option C correct. The number 3 is only a coefficient, while 8 is the constant term. Also, the polynomial has three terms, but the number of terms does not determine its degree. The correct method is always to identify the largest exponent attached to the variable after checking that its coefficient is not zero.

Related tags

PolynomialsDegreeHighest-PowerLeading-TermPolynomials In One VariableMathematicsClass 10 Mcq

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