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solve for x. Enter your answer in interval notation using grouping symbols. x^2+9x<-20

Solve For X Enter Your Answer In Interval Notation Using Grouping Symbols X29xlt20 class=

Sagot :

Oppongbright615idn

Step-by-step explanation:

x^2+9x<-20

x^2+9x+20<0

( x+5)(x+4)<0

x+5<0,x+4<0

x<-4 (because x<-5 is extraneous solution)

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