caziah152 caziah152
  • 25-02-2019
  • Mathematics
contestada

Which equation results from taking the square root of both sides of (x – 9)2 = 81?

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 25-02-2019

Answer:

x-9 = ±9

Step-by-step explanation:

(x – 9)^2 = 81

Take the square root of each side

sqrt((x – 9)^2 = ±sqrt(81)

x-9 = ±9

Add 9 to each side

x-9+9 = 9 ±9

x = 9+9   and 9-9

x = 18,0

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Amanderfoz
Amanderfoz Amanderfoz
  • 21-03-2021

Answer:

x – 9 = ±9

A on edge

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