1) 6(3x - 2) + 4x = 16Решение: 18x - 12 + 4x = 1622x - 12 = 1622x = 28x = 28 / 22x = 1.27
2) 2x + 7(4x + 3) = 53Решение: 2x + 28x + 21 = 5330x + 21 = 5330x = 32x = 32 / 30x = 1.07
3) 3x(5 - 2x) = 6x - 9Решение: 15x - 6x^2 = 6x - 96x^2 - 9x - 9 = 0x^2 - 1.5x - 1.5 = 0(x - 2)(x + 0.75) = 0x = 2 или x = -0.75
4) 4x - 2 = 8 - x(2 + 3)Решение: 4x - 2 = 8 - 5x9x = 10x = 10 / 9
5) 6(2x + 3) - 5 = 15Решение: 12x + 18 - 5 = 1512x + 13 = 1512x = 2x = 2 / 12x = 0.17
6) 3x^2 + 2(4x + 1) = 22Решение: 3x^2 + 8x + 2 = 223x^2 + 8x - 20 = 0x^2 + (8/3)x - 20/3 = 0(x + 4)(x - 5/3) = 0x = -4 или x = 5/3
1) 6(3x - 2) + 4x = 16
Решение: 18x - 12 + 4x = 16
22x - 12 = 16
22x = 28
x = 28 / 22
x = 1.27
2) 2x + 7(4x + 3) = 53
Решение: 2x + 28x + 21 = 53
30x + 21 = 53
30x = 32
x = 32 / 30
x = 1.07
3) 3x(5 - 2x) = 6x - 9
Решение: 15x - 6x^2 = 6x - 9
6x^2 - 9x - 9 = 0
x^2 - 1.5x - 1.5 = 0
(x - 2)(x + 0.75) = 0
x = 2 или x = -0.75
4) 4x - 2 = 8 - x(2 + 3)
Решение: 4x - 2 = 8 - 5x
9x = 10
x = 10 / 9
5) 6(2x + 3) - 5 = 15
Решение: 12x + 18 - 5 = 15
12x + 13 = 15
12x = 2
x = 2 / 12
x = 0.17
6) 3x^2 + 2(4x + 1) = 22
Решение: 3x^2 + 8x + 2 = 22
3x^2 + 8x - 20 = 0
x^2 + (8/3)x - 20/3 = 0
(x + 4)(x - 5/3) = 0
x = -4 или x = 5/3