Question 147393
sqrt(8)
Factor 8 into two factors where one of them is the highest perfect
square that divides 8.
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sqrt(8) = sqrt(4*2)

= sqrt(4)*sqrt(2)

= 2*sqrt(2)

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Sqrt(27) = sqrt(9*3)

= sqrt(9)*sqrt(3)

= 3*sqrt(3)
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Cheers,
Stan H.