خ $x^{2} + 8x + 15 = $

خ $m^{2} - 3m - 10 = $

خ $x^{2} - 6x + 9 = $

خ $x^{3} + 3x^{2} + 2x = $

د $x^{3} - 7x^{2} + 6x = $

ذ $a^{3} + 7a^{2} + 12a = $

ر $2x^{3} + 8x^{2} + 8x = $

ز $x^{3} - 7x^{2} + 12x = $

ژ $ax^{2} - 13ax + 36a = $

س $8ax^{2} + 24axy + 18ay^{2} = $