(x2 + 14x + 49) = (x + 7)2
x2 - 14x + 49(x - 7) (x - 7)
x² + 8x + 15 = (x + 5)(x + 3)
The roots are: x = -5 and x = -9
(x - 3)(x - 11)
x2 - 14x + 45 = (x - 9)(x - 5)
x2 - 14x + 45 = (x - 5)(x - 9).
2x(x2 + 3x - 7)
(x-7) (x-7)
49
49
12
-(x + 5)(x + 6)
(x + 9)(x + 2)
The polynomial IS written in descending order.
-12
x2 + 14x + 45 = 0 => x2 + 9x + 5x + 45 = 0 => x(x + 9) + 5(x + 9) = 0 (x + 9)(x + 5) = 0 so that x = -5 or x = -9