x^3 -8
( x + a ) ( x + b )
4x^2 -2xy+ 9yz -18xz.
4x^2 - 20xy + 25y^2
ax + ay + 4x + 4y
4a^3x - 4a^b + 3bm - 3amx
a^2 -4
(5X^2 + 3X + 7)
14x^4y+ 7xy^2 + 21xy
x^2 + 6x + 9
(a -2)(a+2)
(2x -y) (2x -9z)
(ax-b) (-3m + 4a^2)
(x + y ) (a + 4 )
7xy(2x^3+y+3)
(x + 3 ) ( x + 3 )
a + b = 0 ab=d
(2x - 5y) ^2
(x -2)(x^2+2x +4)
(3a+b) (5a^2+1)