# ALG

Solve. Write the solution set using interval notation.

x2 + 16x + 64 > 0

Solve. Write the solution set using interval notation.

x − 4/
(x + 1)(x − 1) ≤ 0

1. (x+8)^2 > 0
This is true for all x ≠ -8, so
(-∞,-8)U(-8,∞)

(x-4) / (x-1)(x+1) <= 0
(-∞,-1)U(1,4]

http://www.wolframalpha.com/input/?i=%28x-4%29+%2F+%28%28x-1%29%28x%2B1%29%29+for+-2+%3C%3D+x+%3C%3D+5

posted by Steve

First Name

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