Question

sa se rezolve
a)|3x-2|=5
b)|x-4|=2x

Answer 1

[tex]a)|3x-2|=5\\ 1)3x-2=5=\ \textgreater \ 3x=7=\ \textgreater \ x_1=\frac{7}{3}\\ 2)3x-2=-5=\ \textgreater \ 3x=-3=\ \textgreater \ x_2=-1\\ S:x\ partine\ \{\frac{7}{3},-1\}\\ b)|x-4|=2x\\ 1)x-4=2x=\ \textgreater \ x_1=-4\\ 2)x-4=-2x=\ \textgreater \ 3x=4=\ \textgreater \ x_2=\frac{4}{3}\\ S:x\ apartine\ \{-4,3\}[/tex]