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22-01-2019
Mathematics

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a solution of the equation x^2/4=9 is

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wegnerkolmp2741o wegnerkolmp2741o

22-01-2019

Answer:

x = ±6

Step-by-step explanation:

x^2/4=9

Multiply by 4 on each side

x^2/4 *4=9*4

x^2 = 36

Take the square root of each side

sqrt(x^2) = ±sqrt(36)

x = ±6

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