Объяснение:
ответ: x₁=0 x₂=3.
x = 0; 3
(3x - 8)^2 - (2x - 6) = 66 - (5x - 2)(x + 2)
9x^2 - 48x + 64 - 2x + 6 = 66 - (5x^2 - 2x + 10x - 4)
9x^2 - 50x + 70 = 66 - 5x^2 - 8x + 4
9x^2 + 5x^2 - 50x + 8x = 70 - 70
14x^2 - 42x = 0
14x(x - 3) = 0
14x = 0 x - 3 = 0
x = 0 x = 3
Объяснение:
ответ: x₁=0 x₂=3.
x = 0; 3
Объяснение:
(3x - 8)^2 - (2x - 6) = 66 - (5x - 2)(x + 2)
9x^2 - 48x + 64 - 2x + 6 = 66 - (5x^2 - 2x + 10x - 4)
9x^2 - 50x + 70 = 66 - 5x^2 - 8x + 4
9x^2 + 5x^2 - 50x + 8x = 70 - 70
14x^2 - 42x = 0
14x(x - 3) = 0
14x = 0 x - 3 = 0
x = 0 x = 3