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Okay Aspiring math people Another drill for you Here we

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go What is the square root of two hundred twenty

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five Find spirit of a number We factor out as

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many perfect squares as possible while twenty five goes into

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two hundred twenty five nine times And well guess what

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Twenty five and nine both happen to be perfect squares

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We factor out a five and a three from each

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of them and so then we've got desperate of twenty

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five times nine and that's the same as the square

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root of five squared times Three square there All right

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then Just distribute the radical sign over The products will

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get square root of five squared times Grow to three

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squared which is samos five times three which is the

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same as fifteen Forgot what perfection or at least a

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perfect square looks like Well check out the answer Choices

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whatever number we need has to end with a five

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So that leaves us with fifteen b or twenty five

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as indeed And from there well it's a quick bit

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of multiplication to eliminate that twenty five and get to

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the right answer because they're not going to ask you

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to take complex square roots on your own without a 00:01:06.313 --> [endTime] calculator In these kind of exams that's just torture

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