Respuesta :

mhanifa

Answer:

  • x = ± 5

Step-by-step explanation:

See the steps

  • 5x^2+8 = 133
  • 5x^2 = 133 - 8
  • 5x^2 = 125
  • x^2 = 125/5
  • x^2 = 25
  • √x² = √25
  • x = ± 5

thezekromninja

Answer:

x=5

x=−5

Step-by-step explanation:

5x^2+8 =133

Subtract 8 from both sides.

5x^2=133−8

Subtract 8 from 133 to get 125.

5x^2=125

Divide both sides by 5.

x^2=125/5

Divide 125 by 5 to get 25.

x^2=25

Take the square root of both sides of the equation.

x=5

x=−5