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I have to finish all this plus other classes before 12 o’clock please help

I have to finish all this plus other classes before 12 o’clock please help-example-1
User Ander
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It's C. This is the answer because you have to cancel the denominator by rationalizing it. This means that you cannot have any square roots at the bottom. It changes to a plus 14 because they have to cancel each other out. Hope this helps :)

User Dmytro Kozlovskyi
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