14x2 + 29x - 15
= 14x2 + 35x - 6x - 15
= 7x(2x + 5) - 3(2x + 5)
= (2x + 5)(7x - 3)
B
(5x - 1)(x + 3)
(5x - 4)(3x + 5)
(x + 7)(x - 5)
x2+5x+6 = (x+2)(x+3)
(x+8)(x-5)
(x + 2)(x - 9)
(x + 8)(x - 5)
-70
(5x - 1)(x + 6)
(5x + 2)(x + 1)
-((x + 2)(x - 9))
(x - 3)(x + 6)
(x + 2)(x - 8)
(X+9)(x-2)
(x + 2)(x - 7)
(4x + 5)(x - 3)