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What is the coefficient of (x^2) in (p(x)=5x^3+0x^2-4x+12)?

Answer and explanation

Correct answer: (0)

The direct answer is option A, 0. A coefficient is the number multiplying a particular power of the variable. In the polynomial, the terms are arranged as a cubic term, a quadratic term, a linear term, and a constant: 5x^3, 0x^2, -4x, and 12. The term containing x^2 is explicitly 0x^2, so its coefficient is 0. Therefore option A is correct. Option B, 5, is the coefficient of x^3, not x^2. Option C, -4, is the coefficient of x. Option D, 12, is the constant term and has no x. A missing power is also understood to have coefficient zero. Remember: first locate the exact power asked for, then read the number immediately before it.

Related tags

CoefficientMissing TermPolynomial

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