JJMOUSE
JJMOUSE JJMOUSE
  • 15-01-2021
  • Mathematics
contestada

Which answer includes the intrevals that contain the solution to the inequality x^2-1/3x+9<0

Respuesta :

abidemiokin
abidemiokin abidemiokin
  • 20-01-2021

Answer:

x<±1 and x< -3

Step-by-step explanation:

Given the inequality x^2-1/3x+9<0, we are to find the values of x that satisfies the inequality

x^2-1/3x+9<0

x^2-1/3x+9 (3x+9)²<0*  (3x+9)²

(x^2-1)(3x+9) < 0

x²-1 < 0 and 3x + 9 <0

x²-1 < 0

x²<1

x<±√1

x<±1

Also 3x + 9 <0

3x < -9

x < -9/3

x < -3

Hence the required values of x are x<±1 and x< -3

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