The Big Questions: Mathematics by Crilly Tony

Author:Crilly, Tony [Crilly, Tony]
Language: eng
Format: mobi
Publisher: Quercus
Published: 2011-11-23T16:00:00+00:00

The supporting cast

We have already raised the fine distinction between formulae and equations. This raises a secondary question, though: is there always a formula for solving an equation?

The quadratic equation in its various forms has been known about since the time of the Babylonians of around 2000 BC. So dealing with the quadratic equation has a long history. To solve a quadratic equation, such as x2 – 7x + 10 = 0, we need to find the value of x that allows the right-hand side to equal 0. The general problem of solving equations can be difficult, but for the specific theory of the quadratic equation there is a formula for its solution:

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