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

Question 826420: What is x^2-x-12>0 in interval notation please ?
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!

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)
RELATED QUESTIONS
What is the solution for (x-5)(x+1)(4-x)>0 in interval... (answered by edjones)

In interval notation, the set {x/x>0} is... (answered by solver91311)

x<-6 or x> -2 what is the interval... (answered by Aldorozos)

please write in interval notation... (answered by Fombitz)

What is the domain in interval notation for... (answered by John10)

f(x) = x^3 − 2x^2 − 4x + 8 / x − 2 Find any hole(s) in the graph of f. (answered by greenestamps)

Solve and give answer in interval notation... (answered by jim_thompson5910)

which notation is expressed in interval notatior x is... (answered by jim_thompson5910)