Practice problem
Expand and simplify. (−3x−1)(3x−1)(-3x-1)(3x-1)(−3x−1)(3x−1)
−9x2+1-9x^2 +1−9x2+1
−9x2−1-9x^2-1−9x2−1
−9x2−1+6x-9x^2-1+6x−9x2−1+6x
None of the above
Type a concept, like “slope” or “photosynthesis”.