SOLUTION: What is x^2-x-12>0 in interval notation please ?

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Question 826420: What is x^2-x-12>0 in interval notation please ?
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-4%29%28x%2B3%29+%3E+0
test x = -4:
(-8)(-1) > 0 true
test x=0
(-4)(3) > 0 false
test x=5
(1)(8) > 0 true

so
(-oo,-3)U(4,oo)