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Expanding (3x² - 1/x)⁸, a student looks for the term… | StemPy Lab

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Expanding (3x² - 1/x)⁸, a student looks for the term that carries x⁷. What number is its coefficient?

MathematicsHardHigh School (11–12)Algebra › Binomial Theorem Algebra › Polynomials Algebra › Algebraic Identities and Factorisation Board Exam A-Level IB

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Expanding $\left(3x^2 - \dfrac{1}{x}\right)^8$ , a student looks for the term that carries $x^7$ . What number is its coefficient?

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← Which statement about the coefficients in the expansion of (a + b)ⁿ is true for every n?In the expansion of (1 + x)ⁿ, three consecutive coefficients are in the ratio 1 : 2 : 3. Then n is →

More onAlgebra › Binomial Theorem Algebra › Polynomials Algebra › Algebraic Identities and Factorisation

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