1. Решите уравнение: х4- 3х2+ 2 = 0

А) +- 1; 2

Б) +- 1 ; +- 

В) 1; 

Г) 1; 2

2. Найдите корни уравнения:   х2          1

                                                        ___  =   ___

                                                         х - 1        х - 1

А) 1

Б) -1 ; 1

В) - 1

Г ) другой ответ

3. Решите уравнение :   y2             9

                                           ___  =     _____

                                          y +5          y + 5

A) 9

Б) - 5

В) +- 3

Г) 3

Решите пожалуйста !!!!!!!!!!!!!!!!!!!!!

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