85.6. 1) 7x - (x - 2) = 13 – x(x – 6);3) -16 + (4 + x) = x²(x + 12);

Question

Алгебра: 85.6. 1) 7x - (x - 2) = 13 – x(x – 6);3) -16 + (4 + x) = x²(x + 12);​

dmitrii1205 · Answer

Объяснение:1) 7x - (x - 2) = 13 – x(x – 6)7x - x + 2 = 13 - x^2 + 6x6x + 2 = 13 - x^2 + 6x6x - 6x + x^2 = 13 - 2x^2 = 11x1 = x2 = 2)-16 + (4 + x) = x²(x + 12)-16 + 4 + x = x^3 + 12xx^3 + 12x - x -4 + 16 = 0x^3 + 11x + 12 = 0Дальше не умею...

85.6. 1) 7x - (x - 2) = 13 – x(x – 6);
3) -16 + (4 + x) = x²(x + 12);

Популярные вопросы

85.6. 1) 7x - (x - 2) = 13 – x(x – 6);3) -16 + (4 + x) = x²(x + 12);​

Популярные вопросы

85.6. 1) 7x - (x - 2) = 13 – x(x – 6);
3) -16 + (4 + x) = x²(x + 12);