(3 root 7) squared
= (3 root 7) (3 root 7)
= (3x 3) ( sq root 7 x 7)
= 9 x sq root 49
= 9 x 7
= 63
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The square root of 60 lies between 7 and 8 because 7 squared is 49 and 8 squared is 64 and 60 is in between 49 and 64.
-7.. square root cancels out square
Huh? The square root of 49 is 7. 4 squared is 16 Take it from there