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What is the degree of (7x^4-2x^2+x-9)?

Answer and explanation

Correct answer: 4

The degree of a polynomial is the highest exponent of its variable with a non-zero coefficient. Here, the exponents of the terms are 4, 2, 1, and 0. The highest exponent is 4, so the degree is 4. The number 7 is a coefficient, not an exponent, so it cannot be the degree. Exam tip: identify the exponents of the variable and choose the greatest one.

Related tags

PolynomialsDegree Of PolynomialHighest ExponentClass 9 MathematicsAlgebraDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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