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13-05-2020
Mathematics

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solve x^2 = 81.
x = +
-

solve x2 81 x class=

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wegnerkolmp2741o wegnerkolmp2741o

14-05-2020

Answer:

x = ±9

Step-by-step explanation:

x^2 = 81

Take the square root of each side

sqrt(x^2) = ±sqrt(81)

x = ±9

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