1\\x=5" alt="\sqrt{3x+1}=x-1,x-1\geq0,x\geq1\\(\sqrt{3x+1})^2=(x-1)^2\\3x+1=x^2-2x+1\\x^2-5x=0\\x(x-5)=0\\x_{1}=0,x_{2}=5\\0<1,5>1\\x=5" align="absmiddle" class="latex-formula">

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________________ 0 ________________ 2 _____________
f(x) возрастает на 
f(x) убывает на 


0\\x(x-3)>0\\x\in(-\infty;0)\cup(3;+\infty)\\\\x^2-3x=(\frac{1}{2})^{-2}\\x^2-3x=4\\x^2-3x-4=0\\x_{1}=-1,x_{2}=4,x\in(-\infty;0)\cup(3;+\infty)\\x=4" alt="log_{\frac{1}{2}}(x^2-3x)=-2\\\\x^2-3x>0\\x(x-3)>0\\x\in(-\infty;0)\cup(3;+\infty)\\\\x^2-3x=(\frac{1}{2})^{-2}\\x^2-3x=4\\x^2-3x-4=0\\x_{1}=-1,x_{2}=4,x\in(-\infty;0)\cup(3;+\infty)\\x=4" align="absmiddle" class="latex-formula">