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[tex](x+2)^2-(x+2)(x-5)<14x-7 [/tex]

Răspuns :

X la puterea 2+4-x la puterea 2 -4<14x-7  si se simplifica alea  si ramane 14x-7  cred
x²+4x+4-(x²-5x+2x-10)<14x-7
x²+4x+4-x²+3x+10<14x-7
7x+14<14x-7
7x-14x<-7-14
-7x<-21
7x<21
x<3