1) 7m - n + 49² - n² = (7m + 49) - (n + n)(n - n) = 7(m + 7) - (n + 7)(n - 7)
2) 24x² - 4xy + y² - 16 = (4x - y - 4)(6x - y + 4)
3) xy⁴ - 2y⁴ - xy + 2y = y(xy³ - 2y³ - x + 2)
4) 9 - x² - 2xy - y² = (3 - x - y)(3 - x + y)
Уравнения:
1) 5x³ - 5x = 05x(x² - 1) = 05x(x - 1)(x + 1) = 0x = 0, x = 1, x = -1
2) 64x³16x² + x = 0x(64x² - 16x + 1) = 0x(8x - 1)² = 0x = 0, x = 1/8
3) x³ - 3x² - 4x + 12 = 0(x³ - 3x²) - (4x - 12) = 0x²(x - 3) - 4(x - 3) = 0(x² - 4)(x - 3) = 0(x + 2)(x - 2)(x - 3) = 0x = -2, x = 2, x = 3
1) 7m - n + 49² - n² = (7m + 49) - (n + n)(n - n) = 7(m + 7) - (n + 7)(n - 7)
2) 24x² - 4xy + y² - 16 = (4x - y - 4)(6x - y + 4)
3) xy⁴ - 2y⁴ - xy + 2y = y(xy³ - 2y³ - x + 2)
4) 9 - x² - 2xy - y² = (3 - x - y)(3 - x + y)
Уравнения:
1) 5x³ - 5x = 0
5x(x² - 1) = 0
5x(x - 1)(x + 1) = 0
x = 0, x = 1, x = -1
2) 64x³16x² + x = 0
x(64x² - 16x + 1) = 0
x(8x - 1)² = 0
x = 0, x = 1/8
3) x³ - 3x² - 4x + 12 = 0
(x³ - 3x²) - (4x - 12) = 0
x²(x - 3) - 4(x - 3) = 0
(x² - 4)(x - 3) = 0
(x + 2)(x - 2)(x - 3) = 0
x = -2, x = 2, x = 3