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What is the value of p(2) for the polynomial p(x) = 3x³ − 8x² + 7x − 2?

Answer and explanation

Correct answer: 4

Substituting x = 2 gives p(2) = 3(2³) − 8(2²) + 7(2) − 2 = 24 − 32 + 14 − 2 = 4. Therefore, option B is correct. Exam tip: evaluate the powers first, then multiply by their coefficients and perform the operations in order; adding the coefficients alone would be incorrect.

Related tags

Polynomial EvaluationSubstitutionCubic PolynomialPolynomials In One VariablePolynomialsMathematicsClass 10 Mcq

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