Question

1)3x 2 = x + 4;
2)x − 1 = x;
3)3x - x = -2 + 4;
4)x3 = 3x;
5)3x x = 4 + 2;
6)X - 1 = x;
7)2(x + 3) = -2;
8)x + 3 = -2;
9)x + 3 = -1.​

Answer 1

2. x – 1 = x

Нет решения

3. 3 х - х= – 2 + 4

2 х = 2

x = 1

4. x³= 3 x

x³ – 3 x = 0

x ( x² - 3) = 0

x= 0, x² - 3 = 0

x = 0 , x = ± √3

5. 3x - x = 4 + 2

2 x = 6

x = 3

6. x - 1 = x

Нет решения

7. 2 (x+3)= -2

x + 3 = 1

x = - 4

8. x + 3 = – 2

x = – 5

9. x + 3 = – 1

x = – 4