Question

решите уравнение 3x^2(x^3-2x-7)-x^2(3x^3-6x-20)+x(x-18)-54=0

Answer 1

3x^5 - 6x³ - 21x² - 3x^5 +6x³+20x²+x² - 18x - 54=0
- 18x-54=0
- 18x=54
x= - 54:18
x= - 3

Answer 2

спс