Решите уравнение: 1) х^2=642) y^2=0.093) 3x^2=484) x^2=35) y^2-10=396) x^2+5=307) 5t^2-3=778) 1/2x^2=8/9

1) х^2 = 64;

х = √64;

х1 = 8;

х2 = - 8.

2) у^2 = 0,09;

у = √0,09;

у1 = 0,3;

у2 = - 0,3.

3) 3 х^2 = 48;

х^2 = 48 : 3;

х^2 = 16;

х = √16;

х1 = 4;

х2 = - 4.

4) х^2 = 3;

х1 = √3;

х2 = - √3.

5) у^2 - 10 = 39;

у^2 = 39 + 10;

у^2 = 49;

у = √49;

у1 = 7;

у2 = - 7.

6) х^2 + 5 = 30;

х^2 = 30 - 5;

х^2 = 25;

х = √25;

х1 = 5;

х2 = - 5.

7) 5t^2 - 3 = 77;

5t^2 = 77 + 3;

5t^2 = 80;

t^2 = 80 : 5;

t^2 = 16;

t = √16;

t1 = 4;

t2 = - 4.

8) 1/2x^2 = 8/9;

x^2 = 8/9 : 1/2;

x^2 = 8/9 * 2/1;

x^2 = (8 * 2) / (9 * 1);

x^2 = 16/9;

x = √16/9;

x1 = 4/3;

x2 = - 4/3.