Question 572850
49(x^2 + 14x) + 36(y^2 - 10y) = -1537


49(x^2 + 14x + 49) + 36(y^2 - 10y + 25) = -1537 + (49 * 49) + (36 * 25)


49(x + 7)^2 + 36(y - 5)^2 = -1537 + (49 * 49) + (36 * 25)


[49(x + 7)^2 + 36(y - 5)^2] / (49 * 36) = [-1537 + (49 * 49) + (36 * 25)] / (49 * 36)