Solve the following inequalities by graphing the functions. 1. x^2-x-60 2. x^2-2x-53 3. x^3-4x

Question

Solve the following inequalities by graphing the functions.
1. x^2-x-6>0
2. x^2-2x-5>3
3. x^3-4x<-5

tkhunny · Answer

Generally, you would first treat them as equations and solve for the zeros.  This should define three (normally) regions.  Decide each of the regions for the inequality and you will be done.

anonymous · Answer

Ive never heard of regions

tkhunny · Answer

Yes you have.  If you live in a house, there it out side of the house, inside of the .  These are three regions.

If you look at a number line, and pick out x - -1 and x = 4, there are three regions (or pieces of the Domain).  $(-\infty,-1)$, $(-1,4)$, and $(4,\infty)$

anonymous · Answer

oh ok i thought something else.but im still confused how to find the regions

tkhunny · Answer

Generally, you would first treat them as equations and solve for the zeros.

goformit100 · Answer

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