Question

СРОЧНО ПОМОГИТЕ!!!ПОЖАЛУЙСТА!!!

Answer 1

Ответ: $x = -\frac{1}{3};\; 0,5$

Объяснение:

$(\frac{x-1}{x} )^2 = \frac{3x-3}{x} + 4\\\\(\frac{x-1}{x} )^2 = \frac{3(x-1)}{x} + 4\\\\(\frac{x-1}{x} )^2 = 3\cdot(\frac{x-1}{x}) + 4\\\\y = \frac{x-1}{x}\\\\y^2 = 3y+4\\\\y^2-3y-4 = 0\\\\D = 9-4\cdot1\cdot(-4) = 9+16 = 25 = 5^2\\\\y_1 = \frac{3+5}{2} = 4 \\\\y_2 = \frac{3-5}{2} = -1 \\\\1) y_1 = 4\\\\\frac{x_1-1}{x_1} = 4\\\\x_1 - 1 = 4x_1\\\\3x_1 = -1\\\\x_1 = -\frac{1}{3} \\\\2) y_2 = -1\\\\\frac{x_2-1}{x_2} = -1\\\\x_2 -1 = -x_2\\\\2x_2 = 1\\\\x_2= \frac{1}{2} =0,5$

Answer 2

Ответ:

Объяснение:

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