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.
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.
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Answers & Comments
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