Question

помогитье по алгебре!!!

Answer 1

1)

(х - 2)^3 + 13 = 7x + x^3 - 6x^2

(x^3 - 6x^2 + 12x - 8) + 13 = 7x + x^3 - 6x^2

5x = -5, x = -1

2)

(3-x)^3 + 17 = 9x^2 - (x^3 + 10)

81 - 27x + 9x^2 - x^3 + 17 - 9x^2 + x^3 + 10 = 0

81 - 27x + 27 = 0,

-27 * (x - 1) = - 81

x - 1 = 3, x = 4