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If p(x) = 8x⁴ − 3x³ − 4x + 2, what is the sum of all the coefficients of p(x)?

Answer and explanation

Correct answer: 3

To find the sum of all coefficients, substitute x = 1 in the polynomial. Thus, p(1) = 8 − 3 + 0 − 4 + 2 = 3, where the coefficient of x² is 0. Therefore, the correct answer is 3. Exam tip: The sum of the coefficients of a polynomial is equal to p(1).

Related tags

Sum Of CoefficientsPolynomial EvaluationPolynomials In One VariablePolynomialsMathematicsClass 10 Mcq

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