EPQP's answer to matt lucas's Junior College 2 H2 Maths Singapore question.

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EPQP
Epqp's answer
277 answers (A Helpful Person)
1st
Use long division on the quartic equation with x² - 2x + 2 to obtain the remaining quadratic factor. Then solve for the roots of that quadratic factor to get the other pair of roots.
EPQP
EPQP
2 months ago
You should get x² - 4x + 5 as the other quadratic pair which makes the other 2 roots 2 ± i