x= 10/3; x= -3
Пошаговое объяснение:
3x²-x+2+3x²-x+3x²-x+1=93
9x²-3x+3=93
x² - x/3 + 1/3 = 31/3
x² - x/3 = 10
(x - 1/6)² = 361/36
x - 1/6 = 19/6; x - 1/6 = - 19/6
x= 10/3; x= -3
Пошаговое объяснение:
3x²-x+2+3x²-x+3x²-x+1=93
9x²-3x+3=93
x² - x/3 + 1/3 = 31/3
x² - x/3 = 10
(x - 1/6)² = 361/36
x - 1/6 = 19/6; x - 1/6 = - 19/6
x= 10/3; x= -3