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If (a=0) in (p(x)=ax^5+3x^2-7), what will be the degree of (p(x))?

Answer and explanation

Correct answer: 2

When \(a=0\), the term \(ax^5\) becomes 0. Thus, \(p(x)=3x^2-7\). The highest power of \(x\) in the remaining polynomial is 2, so its degree is 2. Degree 5 would apply only if the coefficient of \(x^5\) were non-zero. Exam tip: remove all terms with zero coefficients before finding the degree.

Related tags

PolynomialsDegree Of PolynomialZero CoefficientAlgebraClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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