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If x2 = 30, what is the value of x?
A. ±60 B. ±15 C. ±square root of 30 D.±square root of 15

User Chadit
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1 Answer

6 votes

Answer:

C. ±square root of 30

Explanation:

Apply the square root function to both sides of the equation:


√(x^2)=√(30)\\\\|x|=√(30)\\\\x=\pm√(30)

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The absolute value equation has two solutions. They match choice C.

User Laraconda
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