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If (p(x)=2x^3+(h-4)x^2+7) has degree (3), what is correct about (h)?

Answer and explanation

Correct answer: Any real value of \(h\)

In \(p(x)=2x^3+(h-4)x^2+7\), the coefficient of \(x^3\) is \(2\). It is non-zero and does not depend on \(h\). Hence the highest-power term \(2x^3\) remains present for every real value of \(h\), so the degree is always \(3\). If \(h=4\), only the \(x^2\) coefficient becomes zero; the \(x^3\) term does not disappear. Exam tip: to determine degree, first check the coefficient of the highest-power term.

Related tags

PolynomialsDegree Of PolynomialParameterLeading CoefficientClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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