# math

posted by
**Skye**
.

factor completely

81x^4 - 81

possible choices are::

(9x^2 + 9)(9x^2 - 9)

OR

(9x^2 +9)(3x + 3)(3x - 3)

posted by
**Skye**
.

factor completely

81x^4 - 81

possible choices are::

(9x^2 + 9)(9x^2 - 9)

OR

(9x^2 +9)(3x + 3)(3x - 3)