А) 4(1,5x-3)-5,5x=16x - 12 - 5.5x = 10.5x - 12 = 10.5x = 2x = 44
б) (x+1)(x+2)-x^2=5x+x^2 + 3x + 2 - x^2 = 5x + 3x + 2 = 5x + 2 = 2x + -2 = 2x = -1
в) x(x-1)-x(x-3)=1x^2 - x - x^2 + 3x = 12x = 1x = 6
г) 0.6x = 0.3-3(x+2.50.6x = 0.3 - 3x - 7.0.6x + 3x = -7.5 + 0.3.6x = -7.x = -2
д) 3(x-1) = 3x - 4(8x+13x - 3 = 3x - 32x - 3x - 3 = -29x - 29x = -x = -1/29
е) 8(x-8) + 2(1-2x) = 18x - 64 + 2 - 4x = 14x - 62 = 14x = 7x = 73/4
ж) (x-4)^2 = x^2 - 1x^2 - 8x + 16 = x^2 - 1-8x + 16 = -1-8x = -3x = 4
з) (x+1)^2 = x^2 + x^2 + 2x + 1 = x^2 + 2x + 1 = 2x = x = 0
А) 4(1,5x-3)-5,5x=1
6x - 12 - 5.5x = 1
0.5x - 12 = 1
0.5x = 2
x = 44
б) (x+1)(x+2)-x^2=5x+
x^2 + 3x + 2 - x^2 = 5x +
3x + 2 = 5x +
2 = 2x +
-2 = 2
x = -1
в) x(x-1)-x(x-3)=1
x^2 - x - x^2 + 3x = 1
2x = 1
x = 6
г) 0.6x = 0.3-3(x+2.5
0.6x = 0.3 - 3x - 7.
0.6x + 3x = -7.5 + 0.
3.6x = -7.
x = -2
д) 3(x-1) = 3x - 4(8x+1
3x - 3 = 3x - 32x -
3x - 3 = -29x -
29x = -
x = -1/29
е) 8(x-8) + 2(1-2x) = 1
8x - 64 + 2 - 4x = 1
4x - 62 = 1
4x = 7
x = 73/4
ж) (x-4)^2 = x^2 - 1
x^2 - 8x + 16 = x^2 - 1
-8x + 16 = -1
-8x = -3
x = 4
з) (x+1)^2 = x^2 +
x^2 + 2x + 1 = x^2 +
2x + 1 =
2x =
x = 0