Western Australia is the largest state in Australia. It contains no fewer than 1224 separate Protected Areas with a total area of 17,061,020 hectares (land area: 15,915,080 hectares – 6.30% of the state’s area). 63 of these are National parks, totalling 4,874,282 hectares (1.93% of the state’s area).
... formula is not ideal. See Loss of significance for details.
Derivation
The quadratic formula is derived by the method of completing the square[?]. ...