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03-09-2020
Mathematics

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ChoiSungHyun ChoiSungHyun

03-09-2020

Answer:

+/-√k.

Step-by-step explanation:

When x^2 = k, x can be positive or negative.

For example, (1)^2 = 1 = (-1)^2.

Therefore x = +/-√k.

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