For x=4, 3x2-5x+9=______

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问题 For x=4, 3x²-5x+9=______

选项

答案 To solve the equation, substitute 4 for x: 3(4²)-5(4)+9= 3(16)-20+9= 48-20+9=37

解析

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For x=4, 3x2-5x+9=______

GRE QUANTITATIVE

GRE

Somepsychologistsmaintainthatmentalactssuchasthinkingarenotperformedinthebraina-lone,butthatone’smusclesalso

Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuallyreflectapowerstruggle.Conflictsbetweenparent

Impatiencehasbeenaroundforalongtime.Thereisnothingnewaboutpeoplelosingtheirpatiencewhilestuckintrafficorwa

Wehaveheardalotaboutthehealthbenefitsoftea,especiallygreentea.Itishighinpolyphenols,compoundswithstrongant

AsIwasgrowingup,mylifewentaroundsoccer(足球).Iplayedonthenationalyouthsoccerteams,andtravelledtoEurope.Atag

Agoodtitleforthispassageis.Theaveragenumberofhoursofsleepthatanadultneedsis.

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Whichofthefollowingcannotbethemedianoffivepositiveintegersa,b,c,d,ande?

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Agoodtitleforthispassageis.Theaveragenumberofhoursofsleepthatanadultneedsis.

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