Помогите пожалуйста решите уравнение 1) 2,7x^=0 2)-3/7x^=0 3)6x-3x^=0 4)1/6x^-5/6=0...

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$1)\\ 2,7x^2=0\,\\x^2=0\\x=0\\\\ 2)\\-3/7x^2=0 \\x=0\\-3=0\\NET\;\;RESHENIYA\\\\3)\\6x-3x^2=0\\ 3x(2-x)=0 \\x(x-2)=0\\ x-2=0\;\;|\;\;\;x=0\\ x_{2} =2\;\;\;\; x_{2} =0 \\\\ 4)\\ 1/6x^2-5/6=0\\x^2 - 5 = 0\\x^2=5\\ x_{2} = \sqrt{5} \;\;\;\; x_{2} =- \sqrt{5}\\\\ 5)\\ 12+4x^2=0\\4x^2=-12\;\;ili\;\;x^2+3=0\\x^2=-3\\NET\;\;RESHENIYA\;\;\;\; \\\\ 6)\\Ne\;\;imeet\;\;resheniy$