Question

Помогите плез, распишите всё

Answer 1

${x}^{3} - {9x}^{2} + x - 9 = 0 \\ {x}^{2} (x - 9) + (x - 9) = 0 \\( x - 9) \times ( {x - 1)} = 0 \\ x - 9 = 0 \\ x = 9$

$\frac{2 - x}{3} + \frac{1 - x}{2} = 1 \\ 2(2 - x) + 3(1 - x) = 6 \\ 4 - 2x + 3 - 3x = 6 \\ - 5x = - 1 \\ x =0.2$