The domain of (x+1)/(x^2 + 2x - 3) is a. all real numbers
b. all real numbers except 1 and -3.
c. all real numbers except -1.
d. all real numbers except -3, -1, and 1.
e. all real numbers except -3.

Find the domain by finding where the expression is defined.

Interval Notation:

(-∞,−1)u(-1,3)u(3,∞)

Set-Builder Notation:

{xlx≠-1,3}

Step-by-step explanation:hope this helps

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.