Question 246699: solve the inequality x squared - x >12
Answer by dabanfield(803)   (Show Source):
You can put this solution on YOUR website! solve the inequality x squared - x >12
So we have x^2 - x > 12
Then x^2 - x - 12 > 0
(x-4)*( x+3) > 0
We know that x-4 and x+3 must have the same sign so:
When x-4 > 0,
x+3 is also > 0.
When x-4 < 0,
x+3 is also < 0.
The solution set is the union of all values of x that make these two pairs of inequalities true.
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