khaylanibaby74
khaylanibaby74 khaylanibaby74
  • 18-03-2021
  • Mathematics
contestada

What are the solutions to the equation y^2-1 = 80?

Respuesta :

Аноним Аноним
  • 18-03-2021

Answer:

y^2-1=80

y^2=81

y = positive and negative 9

Answer Link
acloquemawuina34
acloquemawuina34 acloquemawuina34
  • 18-03-2021

y2−1=80

Step 1: Add 1 to both sides.

y2−1+1=80+1

y2=81

Step 2: Take square root.

y=±√81

y=9 or y=−9

Answer:

y=9 or y=−9

Answer Link

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