4*sqrt(40) = 4*sqrt(4*10) = 4*sqrt(4)*sqrt(10) = 4*2*sqrt(10) = 8*sqrt(10).
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3 ft 4 inches is 36 in + 4 in = 40 in. The simplified version of 40in is 2sqrt10 inches.
square root of 8*square root of *4 = 32 Sq root of 4=2 so its 2sq root 8
The square root of [ sqrt(40) ] = 40(1/4) = plus or minus 2.5149 (rounded)
sqrt(3/4) = sqrt(3)/2
√32 = √(16x2) = √16 √2 = 4 √2