Expand the following: (x-3) (x+1)
(x-3) (x+1) = (x) (x) + (x) (1) + (-3) (x) + (-3) (1): x x+x-3 x-3
x x = x^2: x^2+x-3 x-3
x-3 x = -2 x: Answer: |x^2 - 2x - 3
