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ajutor va rog la ex 2​

Ajutor Va Rog La Ex 2 class=

Răspuns :

 

[tex]\displaystyle\bf\\-1\leq 2x-5\leq1~~\Big|~+5\\\\ -1+5\leq 2x\leq1+5\\\\4\leq 2x\leq6~~\Big|~:2\\\\\frac{4}{2} \leq x\leq\frac{6}{2}\\\\2 \leq x\leq3\\\\x\in[2,~3][/tex]