Решите уравнения

11√х=1

3√х-7=0

2-5√2 х=0

4+5√х=0

√х-2=4

х^2-2=0,89

1/4a^2=1

(х-3) ^2=169

1) 11√х = 1

√х = 1/11

x = 1/121

x = 0,0083

2) 3√х - 7 = 0

3 √х = 7

√x = 7 / 3

x = 49 / 9

x = 5,44

3) 2 - 5√2 х = 0

-5 √2x = - 2

√2x = 2 / 5

2x = 4 / 25

x = 2 / 25

x = 0,08

4) 4 + 5√х = 0

5 √x = - 4

√x = - (4 / 5)

Решения нет

5) √х - 2 = 4

√x = 2

x = 4

6) х^2 - 2 = 0,89

x^2 - 2 = 89 / 100

x^2 = (89 / 100) + 2

x^2 = 289 / 100

x1 = 17 / 10 x2 = - (17/10)

x1 = 1,7 x2 = - 1,7

7) 1/4a^2 = 1

a^2 = 4

a1 = 2 a2 = - 2

8) (х-3) ^2 = 169

x - 3 = + - 13

x1 = 16 x2 = - 10