SOLUTION: Please solve: sqrt(x)=-2 and sqrt(x)=2 Is 4 a correct answer? Since 2*2=4 and also (-2)*(-2)=4
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Question 487770
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Please solve: sqrt(x)=-2 and sqrt(x)=2
Is 4 a correct answer?
Since 2*2=4 and also (-2)*(-2)=4
Answer by
solver91311(24713)
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Square both sides:
John
My calculator said it, I believe it, that settles it