(x + 2)²
(5w+z)²
(x - 6)²
(6m-7n)²
(a − b)³
(x-4) (x+4)
(3y+1)(3y-1)
(3x - 4)³
(x + 2)³
(2x + 5)³
(8z+9)(8z-9)
