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3.2.2.5.Solvetheequationforx:x=2+1 3.2.2.5.Solvetheequationforx:x=2+1

3.2.2.5.Solvetheequationforx:x=2+1 - PDF document

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Uploaded On 2016-06-14

3.2.2.5.Solvetheequationforx:x=2+1 - PPT Presentation

xx31 xProofMultiplyingbothequationsbyxwegetthatx22x1x23x1Forthe rstequationwehavex22x10andusingthequadraticequationgivesx2p 22411 212p 8 2Wecankeepitinthisformorrewritep ID: 361326

x;x=3+1 x:Proof.Multiplyingbothequationsbyx wegetthatx2=2x+1;x2=3x+1:Forthe rstequation wehavex22x1=0;andusingthequadraticequationgivesx=2p 224(1)(1) 2(1)=2p 8 2:Wecankeepitinthisform orrewritep

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