Question

How do I set up this problem?

x3 − 4x > 0

Do I first factor out an x?

Answer 1

yes... what do you get?

Answer 2

x^2 -4 >0

Answer 3

you mean:
x(x^2 -4) >0

correct?

Answer 4

now factor the x^2-4. what do you get?

Answer 5

x(x-2)(x+2)>0

Answer 6

can you solve for x here: x(x-2)(x+2) = 0

what are your solutions?

Answer 7

1, 2, -2

Answer 8

0**

Answer 9

you mean: 0, 2, -2

Answer 10

haha.. i knew what u meant... :)

Answer 11

ok..
what we need to do in solving your inequality is to choose a number between these numbers you got from the equation.