[tex]\sqrt{x+1} \sqrt{x-2} \sqrt{x-5} =0\\\\\sqrt{x+1} =0\\\sqrt{x-2} =0\\\sqrt{x-5} =0\\\\x=-1\\x=2\\x=5\\\\\sqrt{-1+1} \sqrt{-1-2} \sqrt{-1-5} =0\\\sqrt{2+1} \sqrt{2-2} \sqrt{2-5} =0\\\sqrt{5+1} \sqrt{5-2} \sqrt{5-5} =0\\\\[/tex]
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0=0
[tex]x\neq -1\\x\neq 2\\x=5\\\\x=5[/tex]
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[tex]\sqrt{x+1} \sqrt{x-2} \sqrt{x-5} =0\\\\\sqrt{x+1} =0\\\sqrt{x-2} =0\\\sqrt{x-5} =0\\\\x=-1\\x=2\\x=5\\\\\sqrt{-1+1} \sqrt{-1-2} \sqrt{-1-5} =0\\\sqrt{2+1} \sqrt{2-2} \sqrt{2-5} =0\\\sqrt{5+1} \sqrt{5-2} \sqrt{5-5} =0\\\\[/tex]
Не визначено
Не визначено
0=0
[tex]x\neq -1\\x\neq 2\\x=5\\\\x=5[/tex]
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