It is: 6(4x+3)
4(x+6)
(4x-3)(x+2)
x2 + 4x = x(x + 4)
X2 + 4xx(x + 4)=======
6xy+9y2
6
(a + 6)(a + 4)
12
12x2 + 7x + 1 = 12x2 + 3x + 4x + 1 = 3x*(4x + 1) + 1*(4x + 1) = (4x + 1)*(3x + 1)
12x2 - 7x + 1 = 12x2 - 4x - 3x + 1 = 4x(3x - 1) - 1(3x - 1) = (3x - 1)(4x - 1)
8x + 5z - 4x + 3z + 6 = 8x - 4x + 5z + 3z - 6 = 4x + 8z - 6