(x+6)^2 + (x+3)^2 = 2x^2Expanding both sides:x^2 + 12x + 36 + x^2 + 6x + 9 = 2x^22x^2 + 18x + 45 = 2x^218x + 45 = 018x = -45x = -45/18x = -5/2
Ответ: x = -5/2
(x+6)^2 + (x+3)^2 = 2x^2
Expanding both sides:
x^2 + 12x + 36 + x^2 + 6x + 9 = 2x^2
2x^2 + 18x + 45 = 2x^2
18x + 45 = 0
18x = -45
x = -45/18
x = -5/2
Ответ: x = -5/2