Question

Ex 2 si 3 dau 100 de puncte.​

Answer 1

Răspuns:

(2x+1)/(x-2)

x-2 I 2x+1

x-2 I 2x-4=> x-2 I 2x+1-2x+4

x-2I 5

x-2∈D₅

x-2=D₅{-5,-1,1,5}

x={-3,1,3,7}

I=divide

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3km=300000cm

300000:75=4000 pasi face tatal

300000:50=6000 pasi face fiul

6000-4000=2000 de pasi face mai mult fiul decat tatal