Transcription of Cubic equations
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Cubic equations
Cubic equationsA Cubic equation has the formax3+bx2+cx+d= 0 wherea =0 All Cubic equations have either one real root, or three real roots. In this unit we explore whythis is we look at how Cubic equations can be solve dby spotting factors an dusing a metho dcalle dsynthetic division. Finally we will see how graphs can help us locate order to master the techniques explained here it is vital that you undertake plenty of practiceexercises so that they become secon reading this text, and/or viewing the video tutorial on this topic, you should be able to: explain why Cubic equations possess either one real root or three real roots use synthetic division to locate roots when one root is known fin dapproximate solutions by drawing a equations an dthe nature of their Cubic graphs to solve Cubic equations101c mathcentreAugust7,20031.
Cubic equations Acubicequationhastheform ax3 +bx2 +cx+d =0 wherea =0 Allcubicequationshaveeitheronerealroot,orthreerealroots. Inthisunitweexplorewhy thisisso. Then we ...
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