**2016 P1 Q7**

**Solution**

a) Hence part

Common methods to find the other root are long division or compare coef. A faster method is to use the sum of roots taught in additional maths.

b)

Comments from examiner’s report

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# Shortcut method for solving 2016 challenging complex number

**2016 P1 Q7**

**Solution**

a) Hence part

Common methods to find the other root are long division or compare coef. A faster method is to use the sum of roots taught in additional maths.

b)

Comments from examiner’s report

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