Question

rezolvati inQ urmatoarele ecuatii:a) | x+1|=|2x-2|; b) (2x+4):2-x=|x| Va rog frumos,Ajutati-ma!!

Answer 1

x+1=2x-2
x=3
x+1=-2x+2
3x=1
x=1/3
s={1;1/3}


x+2=|x|+x
pt x>0
 x+2=2x
x=2>0 , solutie buna

ptx<-
x+2=x-x=0
x=-2<0 , solutie buna

x∈{-2;2}