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

asked by HELP ASAP
  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

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