Решите уравнение (X+2)(X2-2X+4)-X (X-3)(X+3)=26

Question

Решите уравнение
(X+2)(X2-2X+4)-X (X-3)(X+3)=26

Answer 1

X^3 + 8 - x(x^2 - 9) = 26
x^3 + 8 - x^3 + 9x = 26
9x + 8 = 26
9x = 18
x = 2

Answer 2

(X+2)(X2-2X+4)-X (X-3)(X+3)=26
x³+8-x(x²-9)=26
x³-x³+9x=18
9x=18
x=2