TMUA Specimen Paper 1 Q13 — Worked Solution

P1·Differentiation, Algebra & Surds·6.5Specimen · P1 · Q13

real-rootsstationary-pointssign-of-functionquartic

How many real roots does the equation

x^{4} - 4 x^{3} + 4 x^{2} - 10 = 0

have?

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