1928044
1928044 1928044
  • 23-09-2021
  • Mathematics
contestada

What values of x are solutions of the inequality x3 – 4x > 0?

Respuesta :

MissVirius
MissVirius MissVirius
  • 23-09-2021

Answer:

−4x+1≥0

Add −1 both sides we get

−4x+1−1≥0+(−1)

⇒−4x≥−1

Divided both sides by -4 we get

x≤

4

1

...... (i)

Also,

3−4x<0

Add −3 both sides we get

3−4x−3<0−3

⇒−4x<−3

Divided by −4 both sides we get

x>

4

3

...... (ii)

Then,

4

3

<x≤

4

1

which is not possible

Thus, there is no solution.

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