Question

simplifique

a)
$\sqrt{98}$
b)
$\sqrt{27}$
c)
$\sqrt{72}$
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Answer 1

a) √98=√ 2 .7.7= √2.7²= 7√2

b) √27= √3.3.3= √3.3²= 3√3

c) √72= √2.2.2.3.3= √2.2².3²=

2.3√2= 6√2