Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?

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问题 Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?

选项 A、-9
B、-5
C、-3
D、3
E、5

答案B,C

解析 The correct answer is B and C. The solutions are the values of x that make the product of(x-5)(x-9)(x-3)(x+9)equal to 0. Therefore, x can equal 5, 3, 9, or -9, but x cannot equal -5 or -3.

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本试题收录于： GRE QUANTITATIVE题库GRE分类

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Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?

GRE QUANTITATIVE

GRE

ABritishteenagerhasbecomeamulti-millionaireaftersellinganapplicationsoftwarehecreatedtowebgiantYahoo.Thedeal

Entireculturesoperateonelaboratesystemsofindirectness.Forexample,itisdiscoveredinasmallresearchprojectthatmos

Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingatermcalledcarbon"footprint."Thatfootprintrefle

Wehaveheardalotaboutthehealthbenefitsoftea,especiallygreentea.Itishighinpolyphenols,compoundswithstrongant

Giventhechoice,youngerprofessionalsaremostinterestedinworkingattechcompanieslikeAppleandgovernmentagencieslike

Ialwaysencouragesuchpeople,butIalsoexplainthatthere’sabigdifferencebetween"beingawriter"andwriting.

Greenseaturtles(海龟)aretheworld’slargestspeciesofhard-shelledseaturtle.Whilemostindividualsweighabout136to181

Allthefollowingcasesareon-the-jobsmokingexceptthat______.Accordingtothepassage,on-the-jobsmokingaffectsanemplo

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