How to solve a cubic with complex roots

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How do you solve a cubic with complex roots? In this example we find the real solution using inspection then the quadratic formula to find the complex roots. We take a look at complex conjugates and explain that complex roots always come n conjugate pairs.

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Very clear and coherent sir very well done!! Keep this up!! Well done!! Thanks for always supporting me as well.

GCSEALevelMaths
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