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Which of the following is a quadratic polynomial?

Answer and explanation

Correct answer: \(4x^2-1\)

In \(4x^2-1\), the highest power of \(x\) is 2. Hence, its degree is 2 and it is a quadratic polynomial. \(6x+1\) is linear because its degree is 1, while \(x^3-2\) is cubic. Exam tip: identify the type of a polynomial by checking the highest exponent of the variable.

Related tags

PolynomialsQuadratic PolynomialDegree Of PolynomialAlgebraGrade 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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