x^2 + 2x +1
2ax + 2bx - ay + 5a - by + 5b
x^3 + 9x^2 + 27x + 27
(2x+3)(2x-3)
4x^2 - 12xy^2 + 9y^4
4x^2 + 24x + 9
a^3 – b^3
4x^3 + 24x^2 + 12x
(2x+3)^2
4x^2 - 9
(2x - 3y^2)^2
(x + 3)^3
4x (x^2 + 6x + 3)
( 2x -y +5 )(a + b)
(a – b) (a^2 + ab + b^2)
(x+1)^2
