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First, we need to rearrange the equation into a quadratic. A quadratic equation will always have a squared element. 

To this, we move everything over to the left hand side of the equation and ...

A complex number is a number made up of a real and imaginary part. 

Proof by Induction: The method of Proof by Induction is a simple but very powerful t...

A complex number has the form a+bi. We call a the 'real' bit (ie. the bit on a regular number line) and b is the 'imaginary' bit.
To add or subtract complex numbers you just add the real bits of both...

Whilst it is very easy to just plug the numbers into the formula you are given on your formula sheet there is a much faster and more intuitive method of doing this. If we have n numbers beginning at a wit...