Baker2981 Baker2981
  • 12-06-2021
  • Mathematics
contestada

Solve by finding the square roots: 3x2 - 9 = 3

Respuesta :

Leora03
Leora03 Leora03
  • 12-06-2021

Answer:

x= 2 or x= -2

Step-by-step explanation:

3x² -9= 3

+9 on both sides:

3x²= 9 +3

Simplify:

3x²= 12

Divide by 3 on both sides:

x² =4

Square root both sides:

[tex]x = \sqrt{4} [/tex]

x= 2 or x= -2

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