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Class 10MathematicsPolynomialsPolynomials in one variableExpert
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If \(p(x)=x^3-2x^2-5x+6\), what is the value of \(p(3)\)?

Answer and explanation

Correct answer: 0

Substituting \(x=3\), \(p(3)=3^3-2(3)^2-5(3)+6=27-18-15+6=0\). Hence, the correct answer is 0. Since \(p(3)=0\), 3 is also a zero of the polynomial. Exam tip: substitute the given value for every occurrence of \(x\), including its powers.

Related tags

Polynomial EvaluationZeros Of PolynomialsSubstitutionPolynomials In One VariablePolynomialsMathematicsClass 10 Mcq
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