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Question
Find the value of:
`sqrt72 xx sqrt338`
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Solution
We have:
`sqrt72xxsqrt338=sqrt(72xx338)=sqrt(2xx2xx2xx3xx3xx2xx13xx13)`
=`sqrt(2xx2xx2xx2xx3xx3xx13xx13)`
= 2 × 2 × 3 × 13
= 156
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