Polynomials, Cubic Equations and Partial Fractions - Cubic Expressions and Equations

Polynomials, Cubic Equations and Partial Fractions - Cubic Expressions and Equations

TGM Original Questions
  1. Solve the cubic equation \({{x}^{3}}-3{{x}^{2}}-4x+12=0\).
  2. Hence solve the equation \(\frac{1}{8}{{y}^{3}}-\frac{3}{4}{{y}^{2}}-2y+12=0\).

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Answer:(i) \(x=2,3\) or \(-2\) (ii) \(y = 4,6\) or \(-4\)

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