jerusalenestrada7
jerusalenestrada7 jerusalenestrada7
  • 19-03-2020
  • Mathematics
contestada

HELP! WILL GIVE BRAINLIEST!

HELP WILL GIVE BRAINLIEST class=

Respuesta :

Luv2Teach
Luv2Teach Luv2Teach
  • 26-03-2020

Answer:

Step-by-step explanation:

The best way to do this is to set the quadratic = to 0 and solve for x.  

[tex]2x^2-18=0[/tex] and

[tex]2x^2=18[/tex]

Divide both sides by 2:

[tex]x^2=9[/tex] and then take the square root of both sides, which will give you both the positive AND the negative number of the square root of 9.

x = 3, -3

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